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• Postfix not delivering mails

  - by Sotocan

  I have problems with a recently configured postfix MTA. When postfix starts the following warning appears: "postfix/qmgr[5078]: warning: connect to transport private/filter: No such file or directory" I have amavis-new as a content-filter, but even if I comment-out the relevant line, the warning appears. As a result (I think), of the above, I get errors like below, for every virtual domain that I have: "postfix/error[5080]: 254851834107: to=, relay=none, delay=13082, delays=13082/0.01/0/0.01, dsn=4.3.0, status=deferred (mail transport unavailable)" The good news for me, is that somehow I managed to fix that (don't ask me how!!!!) The problem is that now I have 50 or so mails, that were affected by the aforementioned problem, in the mail-queue... If I "postqueue -f " I get the same style of error as before (mail transport unavailable)...however new mails are delivered to their final destination properly... Any suggestions? Kind regards. P.S. Local mail delivery from/to Unix and virtual users, was OK write from the beginning!

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• Choosing a CMS to use with backend modules involving haskell and python [on hold]

  - by Butterflycode

  Hi I am trying to decide on a CMS to use for a new project. Security is the most important element of the CMS. I am looking to use a PHP based CMS such as Joomla or Drupal however, PHP has many security flaws which worries me. The data which needs to be secure will be inside a database and relate to account information. I am wondering what is the best way to do this? What I am wanting is a frontend which is made in php/js(joomla) and then I have a backend api which is written in Haskell to handle money transfers ensuring nothing goes wrong. In between the two I want a controller written in perhaps Python or C. I never want the php to touch the database. I want it to relay messages to the controller that's written in python or C and then it inputs to the database, sanitising data etc Am I perhaps thinking too deeply about this? Just wondering if anyone has any ideas on what I should do.... I can't quite explain what the project is as I don't want the idea to be stolen, but it has a lot money transactions involved so security is essential.

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• PHP and load balancing

  - by StCee

  I have one major domain but the server spec behind it is not good enough. Hence I want to relay the traffic, in particular php-mysql queries to multiple smaller servers. How is that normally be done? (BTW I wonder how much traffic or number of php/mysql request a normal setup on ec2 micro instance can handle? ) I did have a look of EC2 load balancer. But is it only possible to load balance on machines of your own account?

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• Setting Up DHCP Server as Failover

  - by Jason Buhagiar

  I have 2 Domain Controllers running at my company; DC1 has the following roles; ADDS DNS DHCP Scope - 192.168.2.100 - 192.168.2.240 DC2 has the following roles; ADDS - Replicated DNS - Secondary DNS I also have 2 PFSense Gateways both have a different ISP Connection, DHCP Relay is not enabled on any of the machines. Can anyone suggest a way for me to install DHCP Server as FAilover on DC2 please, should I use split scope etc... Help is much appreciated :) Thanks.

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• VPS with Debian Squeeze cannot forwward email - Name service error for name=gmail.com type=MX: Host not found, try again

  - by Domagoj

  I have postfix set-up on my Debian VPS, I can: send emails receive emails on my server But forwarding emails from my server to gmail does not work! I configured google's DNS through /etc/resolv.conf I can ping google.com and with dig I also find gmail MX records. But when my server tries to forward email to gmail (setup with /etc/aliases) I get the following error: postfix/smtp[20280]: 825E117BA8A80: to=<[email protected]>, orig_to=<[email protected]>, relay=none, delay=40, delays=0/0.01/40/0, dsn=4.4.3, status=deferred (Host or domain name not found. Name service error for name=gmail.com type=MX: Host not found, try again) What am I missing? Any help will be greatly appreciated!

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• Queue emails under linux

  - by md1337

  I have a slow distant mail relay server and a web application I'm using locks up when sending e-mails to that distant mail server, until the e-mail is sent. After the e-mail is sent the page comes back and the application is snappy again. SO I'm trying to set up a differed mail queue locally on the application server (linux) so that the application uses that instead of the distant mail server. My rationale is that e-mails would get queued up locally until they are processed by the distant mail server, but at least the application doesn't lock up. I have installed postfix and set up the relayhost setting to the distant mail server, but performance has not improved. What appears to happen is that postfix just forwards my SMTP instructions in real time and doesn't really queue them? What can I do? Thanks!

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• postfix + mysql, user unknown

  - by stoned

  I have installed postfix with dovecot and postfix admin and all seemed well at the beginning. I can log in with thunderbird and check the mailboxes (all empty now) and TRY to send mail, even TLS works. The problem comes when I try to send mail. This is the output of mail.log when I try to send mail from an address to the same address: Nov 23 16:41:55 mailforge postfix/local[6322]: 297792467C: to=, relay=local, delay=0.01, delays=0/0/0/0.01, dsn=5.1.1, status=bounced (unknown user: "test") Nov 23 16:41:55 mailforge postfix/qmgr[6293]: 297792467C: removed To me it looks like as if postfix tries to look for the user "test" while in the mysql database users are named as [email protected] . Where should I change this behaviour?

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• Postfix does not get external emails

  - by Marks

  Hi there. I have a small vserver(ubuntu), on which i want to run mailman and therefore have to configure postfix. I already configured postfix to send mail per relay over gmail (server-ext.). I also receive local emails (server-server), but i dont get emails from ext. (ext. - server). I have a domain routed to the vserver. But when i send an email from external (e.g. from gmail) to [email protected] i don't get it into the inbox. But there is also no error return message i get to my gmail account. What could be a possible problem? Do i have to configure email revieving from external somewhere? Thanks for any help.

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• DHCP misbehavior

  - by Peregrino69

  ISC DHCP Server is running on Fedora 10. Since it's doing nothing else nobody bothered updating it... I've noticed behavior that looks very strange to me: the DHCP server gets a DISCOVER as broadcast, sends OFFER as unicast to the DHCP relay - and immediately afterwards sends the same offer as a bcast. The client itself is misbehaving, it's continuously sending DHCP DISCOVER packets, but I don't think that could cause the server to bcast the offer. Does anyone have any idea why this might happen - is it maybe a feature of this stone-age server?

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• Oracle performance problem

  - by jreid42

  We are using an Oracle 11G machine that is very powerful; has redundant storage etc. It's a beast from what I have been told. We just got this DB for a tool that when I first came on as a coop had like 20 people using, now its upwards of 150 people. I am the only one working on it :( We currently have a system in place that distributes PERL scripts across our entire data center essentially giving us a sort of "grid" computing power. The Perl scripts run a sort of simulation and report back the results to the database. They do selects / inserts. The load is not very high for each script but it could be happening across 20-50 systems at the same time. We then have multiple data centers and users all hitting the same database with this same approach. Our main problem with this is that our database is getting overloaded with connections and having to drop some. We sometimes have upwards of 500 connections. These are old perl scripts and they do not handle this well. Essentially they fail and the results are lost. I would rather avoid having to rewrite a lot of these as they are poorly written, and are a headache to even look at. The database itself is not overloaded, just the connection overhead is too high. We open a connection, make a quick query and then drop the connection. Very short connections but many of them. The database team has basically said we need to lower the number of connections or they are going to ignore us. Because this is distributed across our farm we cant implement persistent connections. I do this with our webserver; but its on a fixed system. The other ones are perl scripts that get opened and closed by the distribution tool and thus arent always running. What would be my best approach to resolving this issue? The scripts themselves can wait for a connection to be open. They do not need to act immediately. Some sort of queing system? I've been suggested to set up a few instances of a tool called "SQL Relay". Maybe one in each data center. How reliable is this tool? How good is this approach? Would it work for what we need? We could have one for each data center and relay requests through it to our main database, keeping a pipeline of open persistent connections? Does this make sense? Is there any other suggestions you can make? Any ideas? Any help would be greatly appreciated. Sadly I am just a coop student working for a very big company and somehow all of this has landed all on my shoulders (there is literally nobody to ask for help; its a hardware company, everybody is hardware engineers, and the database team is useless and in India) and I am quite lost as what the best approach would be? I am extremely overworked and this problem is interfering with on going progress and basically needs to be resolved as quickly as possible; preferably without rewriting the whole system, purchasing hardware (not gonna happen), or shooting myself in the foot. HELP LOL!

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• PCI scan failure for SSL Certificate with Wrong Hostname?

  - by Rob Mangiafico

  A client had a PCI scan completed by SecurityMetrics, and it now says they failed due to the SSL certificate for the SMTP port 25 (and POP3s/IMAPS) not matching the domain scanned. Specifically: Description: SSL Certificate with Wrong Hostname Synoposis: The SSL certificate for this service is for a different host. Impact: The commonName (CN) of the SSL certificate presented on this service is for a different machine. The mail server uses sendmail (patched) and provides email service for a number of domains. The server itself has a valid SSL certificate, but it does not match each domain (as we add/remove domains all the time as clients move around). Seems SecurityMerics is the only ASV that marks this as failing PCI. Trustwave, McAfee, etc... do not see this as failing PCI. Is this issue truly a PCI failure? Or is it just SecuritMetrics being wrong?

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• Domino HTTP Server: Error - Unable to Bind 1.2.3.4, port 80, port in use or Bind To Host configuration specifies a duplicate IP address/host

  - by pdewaard

  We have a Domino 9.0.1 Server hosted on Ubuntu 14.04 Server, which hosts several other http based Tasks, (Nginx, Couchdb, Confluence on Tomcat). The Ubuntu Server has multiple IPs, all bind correctly to the different Tasks. The Domino SMTP task binds correctly and is working well. All http tasks (other than Domino) are proxied behind Nginx version 1.6x and all are working well, netstat shows no 0.0.0.0 bindings, no one is listening on 1.2.3.4:80 . when I try to load http on the (Domino) server console it failes with HTTP Server: Error - Unable to Bind 1.2.3.4, port 80, port in use or Bind To Host configuration specifies a duplicate IP address/host a couple of times, may be 4 or 5 times then it loads without failure! And: when it comes up, I see http is listening on 80 AND 443, but SSL Connections are not working, nor any error log! It must be a kind of bad magic :-( thanks in advance Pitt

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• AD DS or AD LDS

  - by rajeevrautela

  Hi all, Greeetings !!! I need a suggestion about having AD DS or AD LDS for my infrastructure. So lets begin, Ex. I am having a website which as of now do not have any log in facility for the visitors, now we are developing a new application so that the visitors can create account on the website. the best example you can think of is of any telecom service provider, they have their webiste and now is creating a login facility for it's customers so the users can create an account and can subscribe for ebill sort of facilties. Hope the situation is clear now. for this particular application, i intend to have a web server, an application server, a DB server, one SMTP server and one AD server(for authentication of users and for saving the profiles also). My question here starts on AD front, here do i need AD DS or AD LDS here, what i need from AD is 1) provide user authentication, 2) provide role based access. this is my query. hope i'll get the answer very soon.

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• mod_fcgid: stderr: PHP Fatal error with Plesk 11.5.30 and php-pear

  - by netsetter

  Just upgraded to Plesk 11.5.30 and found out that sending SMTP emails with php pear aren't working anymore with following error message: mod_fcgid: stderr: PHP Fatal error: require_once(): Failed opening required 'Mail.php' (include_path='.:/usr/share/pear') in /var/www/vhosts/mydomain.com/httpdocs/check.php on line 4 I know in the new Plesk 11.5 they changed the structure of all vhosts, but the strange thing is that require_once('System.php') placed into the same directory and file is working correctly with no errors and is returning bool(true). Any hints where I could have a look with this mod_fcgid error when require_once('System.php') is working but require_once('Mail.php') isn't working?

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• Exchange migration to 2007 making Outlook 2003 unable to read meeting requests

  - by Kvad

  Hi, We are currently moving from Exchange 2003 to 2007 (8.2 build 176.2). We have encounted an issue with one user. In Outlook 2003 when getting a meeting request: "Can't open this item. Could not complete the operation. One or more parameter values are nto valid." The item cannot be previewed in the reading pane either. The item can be viewed in OWA and iPhone fine. I've tried with cache mode off and on. Different computers. Same issue. There are the following entries on the account: SMTP [email protected] [email protected] X400 C=AU;A= ;P=Company Name;O=Exchange;S=LastName;G=FirstName; I'm loathe to recreate the account. This will be an extreme last resort. Any ideas? Thanks in advance.

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• 4.5.1 4.4.0 DNS Query Failed

  - by Justin

  We are running Exchange 2010 and lately I have noticed that some outgoing messages get stuck in the queue with the error "451 4.4.0 DNS Query Failed". On every domain that this happens on I have been able to use nslookup to find the MX record and open a connection to their server over SMTP so I am reasonably sure that this problem is on my end. My send connector isn't routing mail through a smart host nor is is set to use a different DNS server to do the lookup so I'm stumped as to why these messages aren't going out. Any ideas?

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• Sendmail not working from local PHP when headers not specified

  - by Dan

  Hi. I'm having trouble getting my local XAMPP server to send emails via my remote SMTP server. In PHP, if I put: $headers = "From: [email protected]\r\n"; mail('[email protected]', 'test', '', $headers); Then this works. However, if I don't specify the header, ie.: mail('[email protected]', 'test', ''); Then this fails. The sendmail.log file says: smtpstatus=554 smtpmsg='554 Message refused.' errormsg='the server did not accept the mail' exitcode=EX_UNAVAILABLE I've tried changing my sendmail command in my php.ini to: sendmail_path = "C:/xampp/sendmail/sendmail.exe -t -f [email protected]" but this doesn't work either. Thanks for any help with this, Dan. ps. this is on windows.

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• Determine which active directory object is referred to by GUID in a Directory Synchronization Error Report

  - by Michael Shimmins

  We have active directory syncronization setup between our on-premises AD server and Microsoft hosted Exchange (business productivity online services). I've started getting a daily error report, which details an error for a specific AD user, however it references it by GUID. I can't find any info on how to translate that object guid into something meaningful so I can find and fix the problem. The error is reported as: Error 005: Unable to set the alias for this object in Microsoft Online Services because either the primary SMTP address, the e-mail nickname, or the SAM account name in the local Active Directory contains an invalid character. in reference to the Object GUID: CN={8443cbb4-5199-49f0-9529-ce965430dca6} How can I translate that object guid into a friendly object name?

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• Sharepoint Document Library not receiving emails

  - by ria

  I have created a sharepoint document library which is email enabled. However when i send email to the designated email address from anywhere, i dont receive the email & attachment in the list. I have done some R&D and i hv found that in order to receive email from anywhere i have to expose my DNS of the sharepoint site to the outside world. Now i dont know whether it applies to the email address designated to me in the Active directory profile as well (my company domain email address). How to test that this email reception is working in the document library? I have tried sending an email from the sharepoint site and it works fine so the SMTP settings are correctly done.

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• Bugzilla - How to setup MTA that will receive Gmail to create bugs

  - by JRock

  I have been looking for a while on setting up an MTA for bugzilla to receive bugs via email and am not really seeing any detailed guides. Currently I am using gmail as the outbound smtp for messages, but I do not have a solution for the receiving of emails as bugs. I am assuming I would setup an MTA and it would grab down the emails and then bugzilla would read them somehow. I am unsure of this process/a solution for this; Any detailed help or direction would be great. Distro: Ubuntu 11.10

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• Bulk Email Verification Tool

  - by JoefrshnJoeclean

  I'm looking for a bulk email validation tool to parse a list of 60K email addresses. Our company sends out 8 Million email newsletters a month via our mailing list software - MDAEMON. MDAEMON ships with a bad email address validator but I'm not quite comfortable with its results as it captures returned email addresses with SMTP errors of 500 and above. (We want to keep emails that return a Full Mailbox error or bounce backs that see us as SPAM) To further prune the list, we use Advanced Email Verifier. But I tested a random sample of this list and found a couple emails to be valid. Since our company relies heavily on traffic from our newsletters, I am wondering what other Windows-based bulk email verifier tools are out there?

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• Configuring and managing Windows web server

  - by Mike C.

  Hello, I run a few websites and I was thinking of paying for a dedicated Windows web server from GoDaddy instead of paying for each site's hosting individually. I know enough about IIS to configure the Host Header and stuff like that, but I'm a little fuzzy about the email portion of the hosting. I have a few questions: Do I need to install an SMTP server on the web server to allow for emails to be sent/received to a website email address? Or is there another approach that I'm unaware of? Are there tools that monitor the amount of bandwidth used by the server? GoDaddy charges for bandwidth and I want to make sure I don't go over. Am I opening a can of worms that I don't really want to open by going the dedicated server route? Things like server updates, security, etc? Thanks!

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• What's the largest message size modern email systems generally support?

  - by Phil Hollenback

  I know that Yahoo and Google mail support 25MB email attachments. I have an idea from somewhere that 10MB email messages are generally supported by modern email systems. So if I'm sending an email between two arbitrary users on the internet, what's the safe upper bound on message size? 1MB? 10MB? 25MB? I know that one answer is 'don't send big emails, use some sort of drop box'. I'm looking for a guideline if you are limited to only using regular smtp email.

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• E-mail from specific domain not delivered to one of the cc: recipients on Exchange 2010

  - by BobC

  we have a user on Exchange 2010 server who doesn't get email from one specific domain if her address is in cc: field. If she is a main recipient (To:) it goes through. We checked Exchange logs and it looks like our server doesn't even try to deliver it, it simply ignores her email address completely. We did several tests: send email with her email address in cc: field from another domain, succeeded send email with her email address in to: field from another domain, succeeded send email with her email address in to: field from affected domain, succeeded turn off all email rules check via webmail We also turned off firewall, antispam and antivirus for SMTP rule. Does anyone have any idea what could be an issue here? Thanks

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• How do I receive email sent to postmaster?

  - by jonescb

  I have a VPS server that I would like to get an SSL certificate for, and the CA needs an email address to verify that I own the domain. The options are: [email protected], [email protected], [email protected], and an address to @whoisguard.com. The server runs CentOS 5, and all I have set up for email is sendmail. I don't have POP3 or IMAP. According to this Wikipedia article on Postmaster, it says that all SMTP servers support postmaster and it cites RFC 5321. Does sendmail conform to this? I tried sending a test mail to [email protected], but I don't know how to receive it on my server. Do I need to open up any ports? I haven't gotten a message back saying that my test mail failed to send, so my server must have gotten it.

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