Question
Having issues with Postfix sending out as user@hostname rather than user@domain.com
- Posted June 9, 2017
- EmailUbuntu 16.04
- I keep getting issues where postfix keep trying to send out as the hostname
- Is there a way to send out emails if the username is not on the server?
I’ve been following this guide: https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-postfix-as-a-send-only-smtp-server-on-ubuntu-16-04 and looked through the comments. I’ve ended up adding
masquerade_domains = domain.com
myhostname = domain.com
mydomain = domain.com
And I checked /etc/mailname and it only has domain.com in it.
Logs
Jun 9 20:03:50 web-server postfix/master[2276]: terminating on signal 15
Jun 9 20:03:51 web-server postfix[2436]: Postfix is running with backwards-compatible default settings
Jun 9 20:03:51 web-server postfix[2436]: See http://www.postfix.org/COMPATIBILITY_README.html for details
Jun 9 20:03:51 web-server postfix[2436]: To disable backwards compatibility use "postconf compatibility_level=2" and "postfix reload"
Jun 9 20:03:51 web-server postfix/master[2473]: daemon started -- version 3.1.0, configuration /etc/postfix
Jun 9 20:03:56 web-server postfix/pickup[2474]: D62F51710A: uid=1001 from=<user@web-server>
Jun 9 20:03:56 web-server postfix/cleanup[2480]: D62F51710A: message-id=<20170609200356.D62F51710A@domain.com>
Jun 9 20:03:56 web-server postfix/qmgr[2475]: D62F51710A: from=<user@web-server>, size=406, nrcpt=1 (queue active)
Jun 9 20:03:57 web-server postfix/smtp[2482]: D62F51710A: to=<user.name@gmail.com>, relay=gmail-smtp-in.l.google.com[209.85.201.26]:25, delay=0.43, delays=0.05/0.06/0.17/0.15, dsn=2.0.0, status=sent (250 2.0.0 OK 1497038637 w195si1953813qkb.93 - gsmtp)
Jun 9 20:03:57 web-server postfix/qmgr[2475]: D62F51710A: removed
###/etc/postfix/main.cf
# See /usr/share/postfix/main.cf.dist for a commented, more complete version
# Debian specific: Specifying a file name will cause the first
# line of that file to be used as the name. The Debian default
# is /etc/mailname.
#myorigin = /etc/mailname
smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
biff = no
# appending .domain is the MUA's job.
append_dot_mydomain = no
# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h
readme_directory = no
# TLS parameters
smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
smtpd_use_tls=yes
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for
# information on enabling SSL in the smtp client.
masquerade_domains = domain.com
smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
myhostname = domain.com
mydomain = domain.com
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = $myhostname, domain.com, localhost, localhost.localdomain, localhost
relayhost =
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = loopback-only
inet_protocols = all
Subscribe
Share
Submit an answer
You can type!ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!
Sign in to AnswerThese answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.
Try DigitalOcean for free
Click below to sign up and get $100 of credit to try our products over 60 days!
@hansen looks like I had to change the hostname and add my domain to the hostname…
and it finally worked T_T that took hours thanks so much for keeping up on this thread
@hansen
/etc/hostnamejust has my hostname in it, not the domain… should I change that?I’ll look into SparkPost but I just like having the email sent via my own server so I don’t depend on a third party for now
@hansen do I need to change my hostname to match my domain name? I don’t know if that’s supposed to be how it works but maybe it’s a workaround?
@hansen well I’m only using echo “This is the body of the email” | mail -s “This is the subject line” user.name@gmail.com like in the tutorial and I’m getting those issues.
I need to use it for WordPress basically - I wasn’t receiving any emails from WordPress, user creation etc.
@hansen I’m still getting the same issue even after changing hostname.domain.com for
myhostnameand adding and deleting the contents of themydestinationline. I made sure to restart postfix as well.Hi @tannerchung
Can you change the last section of
/etc/postfix/main.cfto this: