Hello all, I am trying to use postfix-settings (/etc/postfix/) for sending mails from the bigIP directly to my account. By default the sender address is like "root@mydomain.tld", so it always takes "root" as the user account. Unfortunately, I can't use "root" within our SMTP-environment, therefore it would be quite valuable for me being able to change the sender's user account to something like "LTM1@mydomain.tld". Does anyone know where to change this exactly? I was trying to do this in /etc/postfix/aliases, but did not get to a satisfying result so far...:-( Thanks for any good ideas. Cheers, Stephan

Edit /etc/postfix/main.cf: SENDING MAIL The myorigin parameter specifies the domain that locally-posted mail appears to come from. The default is to append $myhostname, which is fine for small sites. If you run a domain with multiple machines, you should (1) change this to $mydomain and (2) set up a domain-wide alias database that aliases each user to user@that.users.mailhost. For the sake of consistency between sender and recipient addresses, myorigin also specifies the default domain name that is appended to recipient addresses that have no @domain part. myorigin = $myhostname myorigin = $mydomain

Hi, thanks for the quick reply - I already tried it at that point. But this will only let me change the domain, not the user. I am only interested in changing the part before the @. Changing the domain is working just fine. Thanks though.... Cheers, Stephan

Sorry, jumped the gun on that... :-) The way to set that up is to add this line to your main.cf file: echo "smtp_generic_maps = hash:/etc/postfix/generic" >> /etc/postfix/main.cf Then create the map: echo "root@localhost fromMe@mydomain.com" > /etc/postfix/generic Then apply the map: postmap /etc/postfix/generic Then restart postfix (bigstart restart postfix on the LTM) This works on ubuntu (minus the bigstart command), but doesn't change the behavior on the F5 at all. Drat! maybe Support can help?

Hi, I finally found the bullet: the map (e.g. /etc/postfix/generic) also needs to be listed as following parameter in main.cf sender_canonical_maps = hash:/etc/postfix/generic Then restart postfix and -abracadabra-...... Thanks for leading me the way! :-) Best Regards, Stephan

Excellent work, thanks for posting back!

sender address in eMails sent by postfix

19 Replies

Hamish
Cirrocumulus
Mar 30, 2010
Well... You could use a regex rule on the body to kickoff a different canonical mapping.

H
luciano_55922
Nimbostratus
Aug 12, 2011
Hello

People.

which step by step for me to configure the BigIP to send email on failure of the pool, ask the site I'm not getting set.
hoolio
Cirrostratus
Aug 16, 2011
Hi Luciano,

Here's a good article to start with:

sol3667: Configuring alerts to send email notifications

http://support.f5.com/kb/en-us/solutions/public/3000/600/sol3667.html

Aaron
kridsana
Cirrocumulus
Jul 03, 2013
Hi Hoolio

From sol3667 .. If i changed fromaddress="root" into fromaddress="gtm01"

when email sent >> Does sender will change into From: gtm01@hostname.com ?

Thank you
kridsana
Cirrocumulus
Jul 03, 2013
Hi Hoolio

From sol3667 .. If i changed fromaddress="root" into fromaddress="gtm01"

when email sent >> Does sender will change into From: gtm01@hostname.com ?

Thank you
hoolio
Cirrostratus
Jul 03, 2013
Yes, I believe that should work. If not, can you just put the full from address you'd like used?

Aaron
Stefan_Klotz
Cumulonimbus
Jan 05, 2015
I just want to say thank you (especially Stephan and Jason) for this very old topic. It helped me a lot to get email alerting on custom user alerts working again. Settings got lost during software update and were not documented :(

Ciao Stefan :)
lilli_144452
Nimbostratus
Feb 03, 2015
Hi,

I'm with the same problem, see configurations applied below:

[ltm01:Active] ~ newaliases [ltm01:Active] ~ echo "smtp_generic_maps = hash:/etc/postfix/generic" >> /etc/postfix/main.cf [ltm01:Active] ~ echo "root@localhost myname@mydomain.com" > /etc/postfix/generic [ltm01:Active] ~ echo "root@myname@mydomain.com myname@mydomain.com" > /etc/postfix/generic [ltm01:Active] ~ echo "sender_canonical_maps = hash:/etc/postfix/generic" >> /etc/postfix/main.cf [ltm01:Active] ~ postmap /etc/postfix/generic [ltm01:Active] ~ bigstart restart postfix

Am i missing something?

Regards
- lilli_144452
  Nimbostratus
  Feb 03, 2015
  [ltm01:Active] ~ newaliases [ltm01:Active] ~ echo "smtp_generic_maps = hash:/etc/postfix/generic" >> /etc/postfix/main.cf [ltm01:Active] ~ echo "root@localhost myname@mydomain.com" > /etc/postfix/generic [ltm01:Active] ~ echo "root@myname@mydomain.com myname@mydomain.com" > /etc/postfix/generic [ltm01:Active] ~ echo "sender_canonical_maps = hash:/etc/postfix/generic" >> /etc/postfix/main.cf [ltm01:Active] ~ postmap /etc/postfix/generic [ltm01:Active] ~ bigstart restart postfix