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  • Gmail not accepting mail

    - by BARON'S
    I'm setting up a new mail server with postfix dovecot and things are working fine except this strange thing. I'm unable to send email to gmail addresses. The log shows status sent. However, I checked there is no email in gmail mailbox. Jul 8 13:10:08 example postfix/smtp[5294]: B53B637C233: to=<[email protected]>, relay=gmail-smtp-in-v4v6.l.google.com[173.194.79.26]:25, delay=2.2, delays=1.5/0.08/0.49/0.14, dsn=2.0.0, status=sent (250 2.0.0 OK 1341727808 nc7si50672387pbc.75) However, my other account can send to gmail. After several testing, then I found that if I first send email from gmail, then subsequently I can send from my server and email received by gmail. I don't have this issue with Yahoo. What could be the problem?

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  • How do you monitor a monitoring server?

    - by organicveggie
    So we run Groundworks (with Nagios) on CentOS to monitor our various servers and processes. I have it setup to automatically send emails and SMS texts when things reach a WARNING or CRITICAL state. Normally this works perfectly. However, twice we've had problems with Postfix on that server where Postfix decides to stop sending email. The most recent time lasted 4 days because none of us noticed. That leads me to a important question: how am I supposed to monitor my monitoring server?

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  • authenticating to exchange 2010 smarthost?

    - by Richard Hansen
    I have a postfix mail server that should relay all outgoing mail to an Exchange 2010 server (the Exchange box is my smarthost). I have administrator access to the Exchange 2010 system, but I'm not very familiar with it. How should I set up authentication on the Exchange 2010 system? I guess I could add a standard user with a mailbox on the Exchange box, then configure my postfix box to log in to port 587 to relay mail. That option doesn't feel right -- it seems like there should be way to do server to server authentication, not just client to server authentication. Is there? If so, how would I set it up?

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  • How to setup email server in ubuntu 12.04LTS(debian 7 wheezy/sid) running on linode vps

    - by shihon
    I am working on email server, since i tried several times to create email server on ubuntu12.04LTS with postfix + dovecote + postfixadmin + courier + clamav + spamassassin. But everytime i install these packages i face new problems, like mails send to localhost users and found in users maildir. But I can't determine how to configure/setup for send an email to external smtp like gmail, yahoo. The most worst thing i can't determine how to use sasl, because i am not using SSL so it is not worthy for my domain. This is so complicated, i search everywhere on google: links are https://help.ubuntu.com/community/PostfixCompleteVirtualMailSystemHowto http://www.starbridge.org/spip/spip.php?article1&lang=fr http://knopix.wordpress.com/2008/01/16/postfixadmin-postgresql-courier-squirrelmail-on-debian-etch-howtotutorial/ http://flurdy.com/docs/postfix/ Is there any article for install email server on ubuntu 12.04LTS. Please help me to understand these things.

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  • Mailing list with dynamically generated addresses

    - by Joe Tomasone
    I am trying to implement a dynamic mailing list from a database that changes quite often. Conditions: Postfix is the MTA Email addresses are in a MySql Database Postfix only allows senders whose emails are in that database (via smtpd_sender_restrictions) Cron job extracts the current emails from the database nightly and puts them into an alias file, then runs postalias on it. This works well, but since the sender remains the same, many domains are rejecting the email since my server is not a DNS listed mail server for the sender's domain. So, I either have to find a way to re-write the outgoing address as "listserv@mydomain" or find some mailing list package that will use database-retrieved emails (either queried directly or in a flat file) as the subscriber list, with that list replaced daily. I've tried Sympa and am pretty much ready to give up on it - it's a nightmare to get working right - but that's the only open source listserver that I have seen that works with dynamic mail lists. Does anyone have any ideas? Thanks, Joe

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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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  • Get SMTP to work

    - by user664408
    We upgraded to exchange 2010 and this broke an old java based script that connected and sent out e-mail messages. Many hours later we still can't get exchange to work like exchange 2003 did. That hope was abandoned and we decided to create a linux postfix server to forward the e-mail from the old system to exchange, eliminating exchange on the java side. This still doesn't work with similar errors. I need help figuring out what is different between exchange 2003 with SSL and authentication and the new servers, both linux and exchange 2010. My guess is both have TLS and for some reason the java code won't revert back to the older version of SSL, instead it just fails. Can someone help me either setup exchange 2010 to work like 2003 used to, OR to setup postfix to mandate it use SSL 2.0 instead of TLS? unfortunately no one knows anything about the Java code and they can't decompile it apparently. Any help is appreciated.

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  • Redirect specific e-mail address sent to a user, to another user.

    - by Michael Pasqualone
    I need to redirect e-mail within our MTA when the two following criteria are both true: When an e-mail is: Sent from: [email protected] Addressesd to: [email protected] Result: redirect e-mail to [email protected]. I don't want to catch *@isp.com and redirect, and I don't want to redirect all e-mail addressed to [email protected] but only redirect when [email protected] sends [email protected] an e-mail. How do I achieve this within Postfix's configuration. And if it's not possible within Postfix, what may be the best solution?

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  • Fix mail that has been put in deferred folder

    - by Safado
    So we have a little more than usual deferred mail on our Postfix server, so I started to look through the messages to make sure we weren't hacked and sending out spam. Everything is fine and it turns out that a bot had filled out our Request Info form multiple times with bad info. However, I did find one that was a legitimate request for more information about our company and I noticed that it isn't sending because they fat-fingered the address with gmal.com. Is there a way I can correct that and have Postfix send it out? This is on a CentOS server.

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  • how to stop deferred emails

    - by Will K
    I have a postfix mail gateway. At the same time, every other host is set to use this gateway as the relay. We have some automated outgoing emails sent from some hosts. I believe the gateway trys to send a deferred status back to the system started this. But that system is a null client, which sends but not receive any email Is there anyway to stop sending the deferred status? e.g. postfix/smtp[35725]: 2F6A155C256: to=, relay=none, delay=260862, delays=260862/0.01/0/0, dsn=4.4.1, status=deferred (connect to orange.mydom.com[192.168.1.5]:25: Connection refused) Thanks

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  • Rewrite (or add) "Sender: " header when MAIL FROM is not the authenticated user

    - by nbevans
    I need to get Postfix to inspect the MAIL FROM of the envelope and determine whether it matches the authenticated user of the session. If it does not, it should then add or update the "Sender: " header inside the e-mail so that its value is that of the authenticated user. I understand that this can be done using sender_canonical_maps but, having tried a few remedial tests, I'm unable to get it working. More than anything I would like to know whether this is actually possible with Postfix, and secondly whether I am in the right ball park. Lastly, an example of how to do it would be fantastic. Thanks very much.

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  • ISPConfig dovecot status=bounced (user unknown)

    - by Ivan Dokov
    Before you point me to Google or serverfault search I want to tell you that I've searched a lot, did some "fixes". They didn't help. I have ISPConfig 3 installed on Ubuntu 12.04 LTS Server The server has several domains and lets call the main domain: example.com. I have also demo.com I have several emails on each domain. The status of the email sent between the emails: [email protected] - [email protected] (Success) [email protected] - [email protected] (Failure) The failure is with error: postfix/pipe[31311]: 8E72ED058D: to=<[email protected]>, relay=dovecot, delay=0.1, delays=0.03/0/0/0.07, dsn=5.1.1, status=bounced (user unknown) I saw the fix for removing the example.com from: mydestination = localhost, localhost.localdomain in /etc/postfix/main.cf It didn't help. Also an important thing is that the example.com MX records are Google's. We are using Google Apps for this domain in order to use Gmail servers. I think the problem is that the mail server is not looking for the MX records of the domain. It knows the domain is set on this server and it searches for the destination email on the local server, not on Google's servers. For several days I'm really lost! Thanks for your help in advance!

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  • How can I explain to dspam that the user "brandon" is the same as "brandon@mydomain"

    - by Brandon Craig Rhodes
    I am using dspam for spam filtering by running the "dspamd" daemon under Ubuntu 9.10 and then setting up a Postfix rule that says: smtpd_recipient_restrictions = ... check_client_access pcre:/etc/postfix/dspam_everything ... where that PCRE map looks like this: /./ FILTER lmtp:[127.0.0.1]:11124 This works well, and means that all users on my system get all of their email, whether "dspam" thinks it is innocent or not, and have the option of filtering on its decisions or ignoring them. The problem comes when I want to train dspam using my email archives. After reading about the "dspam" command, I tried this on the files in my Inbox and spam boxes (which date from when I was using another filtering solution): for file in Mail/Inbox/*; do cat $file | dspam --class=innocent --source=corpus; done for file in Mail/spam/*; do cat $file | dspam --class=spam --source=corpus; done The symptom I noticed after doing all of this was that dspam was horrible at classifying spam — it couldn't find any! The problem, when I tracked it down, was that I was training the user "brandon" with the above commands, but the incoming email was instead compared against the username "brandon@mydomain", so it was running against a completely empty training database! So, what can I do to make the above commands actually train my fully-qualified email address rather than my bare username? I would like to avoid having to run "dspam" as root with a "--user" option. I would have expected that the "dspam" configuration files would have had an "append_domain" attribute or something with which to decorate local usernames with an appropriate email domain, but I can't find any such thing. When I used to use the Berkeley DB backend to "dspam", I solved this problem by creating a symlink from one of the databases to the other. :-) But that solution eventually died because the BDB backend is not thread-safe, so now I have moved to the PostgreSQL back-end and need a way to solve the problem there. And, no, the table where it keeps usernames has a UNIQUE constraint that prevents me from listing both usernames as mapping to the same ID. :-)

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  • Multiple Servers + One MailServer

    - by theomega
    Hy, I got several Linux-Servers (running Debian) where different services run: Database-Servers, Webservers, Applicationsservers, Tools and so on. All Servers are connected to the same internal network. There is also one special Server which is the Mail-Server: All Mailaccounts are stored on this server, it is also the outbound Mailserver for all the other servers. I want all Mails for all servers to get saved on the Mailserver. For example if an cron-job fails on one of the web-servers the mail should not be delivered to the local user but instead to the Mailserver so I get a centralized place for mail storage. How do you set up this scenario? My current setup is: Using postfix as MTA on the Mailserver and using ssmtp on all the other servers. SSMTP is configured to send the mails to the Mailserver. The Mailserver is configured to allow the whole internal network to relay mails using itself. Is this the right way to choose? I also thought about setting up a MTA (postfix) on every server and configure it somehow to forward the mails. What would be the advantage of this solution?

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  • Can Subject Alternative Name accommodate multiple virtual mail domains?

    - by Lawrence
    I am currently running a postfix server with self signed certificates serving one mail domain, mycompany.com, the mail server is mail.mycompany.com and so is the CN of the certificate. Now, I need to add a new domain to it. The new domain name is mycompany.net to the same server. Since the users already have the root of the old certificate, I'd like to reuse that. However, I'd like to issue a new certificate so users using the SMTP from Outlook/Thunderbird of mail.mycompany.net do not get warnings. If I understand correctly, if I issue a new certificate with CN=mail.mycompany.com and a subjectAltName=DNS:mail.mydomain.net and have postfix serve this, the client will not complain either way about the cn not matching the target host name. Am I correct in this assumption or am I misunderstanding the concept of Subject Alternative Name? Just to avoid conversation, I do not want to have users on mycompany.net addresses use the mycompany.com server because I might (not a technical issue) have to split up into two different locations, and I want to produce an easily migrateable setup.

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  • Email Proxy Ideas

    - by jtnire
    Hi Everyone, I wish to host some managed email servers for some customers. Each customer will have their own email server which will be an all-in-one virtual machine running postfix, dovecot and some webmail suite. Even though each customer will have their own server, I do not wish to give each email server it's own public facing IP. I wish to avail the use of proxy servers so all customers use the same public IP. As for the "smtp-in" from the public internet, this isn't a problem as I can set up many mx servers (using postfix) which will store-and-forward the mail to the correct server (using transport maps). As for the IMAP access from the customer, I was thinking of using perdition which is an IMAP proxy - I believe that this will suit my needs. I am confused however on what to use for the "smtp-out" proxy. The customers will have to authenticate with their receptive email server, however they will have to go via a proxy of some sort as they won't have direct access to their server instance. It probably can't be a store-and-forward proxy either. Does anyone have any idea on what I could use here? Many Thanks

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  • Prefix and Postfix operator's necessity

    - by Karthi prime
    What is the necessity of both prefix and postfix increment operators? Is not one enough? To the point, there exists like a similar while/do-while necessity problem, yet, there in no so much confusion (in understanding and usage) in having them, but with having both prefix and postfix (like priority of these operators, their association, usage, working). And do anyone been through a situation where you saidd "Hey, I am going to use postfix increment. Its useful here"

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  • List of mail servers using DKIM, SPF and SenderID

    - by Ashish
    Hi, I am setting up Postfix mail server. What I want to know is that, what the popular mail server's like yahoo, gmail, AOL, Microsoft Outlook server etc. use for sender identification of e-mails. e.g: Which one use SPF or DKIM or SenderId etc. Any listing enumerating about these properties would be highly useful. Thanks in advance Ashish

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  • Flush all messages in mailbox from Zimbra to another server

    - by Giovanni Lovato
    I have a primary Dovecot + Postfix mail server and a secondary Zimbra 8.0.1 server. The primary server went down for a week and all the incoming messages were delivered to the secondary server which has configured a "catch all" account. Now that the primary server is back online, I'd like to flush all messages on the "catch all" mailbox to the primary server for appropriate delivery to the corresponding user mailbox (and its own rules). Is that possible?

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  • Easiest way to send mail from Linux Server

    - by QAH
    Hello everyone! I want my server to send me email alerts every time it does things such as run a backup. I have tried to setup programs like Sendmail, Postfix, etc on my Ubuntu Server box and it is really a pain for me to get it working. Is there any online service or some easy gateway where my server can send email alerts? If not, is there any easy scripts to get a Linux mail program up and running? Thanks

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