Sendmail: external alias not receiving relayed mail under certain circumstances.

Posted by ben on Server Fault See other posts from Server Fault or by ben
Published on 2010-05-12T15:45:42Z Indexed on 2010/05/12 15:55 UTC
Read the original article Hit count: 280

Filed under:

sendmail

|

gmail

|

linux

|

email

|

deliverability

I have set up an alias in /etc/mail/aliases like this:

user: [email protected]

This relay DOES work when I telnet to example.com 25 and send mail to [email protected] (where example.com is my domain); it indeed turns up in [email protected] inbox.

Also mail sent from my server at example.com is generally deliverable to this same email address, [email protected].

HOWEVER, the relay DOES NOT work when I send mail from [email protected] to [email protected], expecting it to be relayed back to [email protected].

The mail.log shows it being received and sent just fine, so I guess it is being blocked by gmail for some reason. Why though? As I said, gmail generally does except mail from this server.

© Server Fault or respective owner

Related posts about sendmail

Sendmail Failing to Forward Locally Addressed Mail to Exchange Server

as seen on Server Fault - Search for 'Server Fault'
I've recently gained employment as a web developer with a small company. What they neglected to tell me upon hire was that I would be administrating the server along with my other daily duties. Now, truth be told, I'm not clueless when it comes to these things, but this is my first rodeo working with… >>> More
Output php mail calls to log file

as seen on Server Fault - Search for 'Server Fault'
This question relates to the question found here: Find the php script thats sending mails Trying to do the exact same thing but can't get the log to output what I need. Not too experienced with serverfault and ideally I'd post my followup on the original question, or PM adam to see if he ever found… >>> More
Sendmail background process sometimes processes queue, but sendmail -q always works

as seen on Server Fault - Search for 'Server Fault'
I'm using sendmail version 8.14.4 on Fedora 15 to send email. My Rails app uses delayed_job to queue up emails. Messages will queue up in /var/spool/mqueue as expected, but don't always get processed. I can see the messages and sendmail is definitely running in the background. Restarting the process… >>> More
sendmail: Error during delivery. Service not available, closing transmission channel

as seen on Server Fault - Search for 'Server Fault'
I have a module in my system that will trigger an email and send it to user. The email will be sent to user when the product in my system is going to expired soon. I test the whole module in localhost and there is no problem with it. Then, I finally moved the module in my server but it gives this… >>> More
sendmail.exe: Error during delivery. Service not available, closing transmission channel

as seen on Server Fault - Search for 'Server Fault'
I have a module in my system that will trigger an email and send it to user. The email will be sent to user when the product in my system is going to expired soon. I test the whole module in localhost and there is no problem with it. Then, I finally moved the module in my server but it gives this… >>> More

Related posts about gmail

Configure Postfix to send/relay emails Gmail (smtp.gmail.com) via port 587

as seen on Server Fault - Search for 'Server Fault'
Hi. Using Centos 5.4, with Postfix. I can do a mail [email protected] subject: blah test . Cc: and the msg gets sent to gmail, but it resides in the spam folder, which is to be expected. My goal is to be able to generate email msgs, and to have them appear in the regular Inbox! As I understand… >>> More
How to configure postfix for per-sender SASL authentication

as seen on Server Fault - Search for 'Server Fault'
I have two gmail accounts, and I want to configure my local postfix server as a client which does SASL authentication with smtp.gmail.com:587 with credentials that depend on the sender address. So, let's say that my gmail accounts are: [email protected] and [email protected]. If I sent a mail with acc1@gmail… >>> More
Split a long JSON string into lines in Ruby

as seen on Stack Overflow - Search for 'Stack Overflow'
First, the background: I'm writing a Ruby app that uses SendGrid to send mass emails. SendGrid uses a custom email header (in JSON format) to set recipients, values to substitute, etc. SendGrid's documentation recommends splitting up the header so that the lines are shorter than 1,000 bytes. My… >>> More
Gmail smtp, Blackberry, BB, socketConnection, send email via gmail smtp programmatically

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello! Somebody can help me how can i use the gmail smtp server programmatically via socketConnection. My question is how i can write write a TSL/SSL authentication because i can`t communicate with the server?? Somebody did it from java on blackberry ? Thank You Alex >>> More
Log in/out of Gmail chat programmatically, clicking Gmail's span "links"

as seen on Stack Overflow - Search for 'Stack Overflow'
At work, I use Gmail's chat, since it's encrypted and logs chats without installing or saving anything to the hard drive. At home, I use Pidgin. When I log into GMail at home, I have to log out of chat, or messages will end up in the wrong place. When I log into GMail at work, I have to log back… >>> More