Michael> I have been using postfix on a local machine for a few years Michael> to act as a relay for my domain to send email out through Michael> gmail.
Michael> This has worked well enough, but I noticed recently that I Michael> had some email queued up and was not getting emails out any Michael> longer. Michael> In my mailog, I am seeing these errors: Michael> Jan 14 08:16:18 deathstar postfix/smtp[16142]: 8CBF11E12B5: Michael> to=<michael@my.domain>, relay=smtp.gmail.com[173.194.203.108]:587, Michael> delay=58297, delays=58297/0.05/0.71/0, dsn=4.7.0, status=deferred (SASL Michael> authentication failed; cannot authenticate to server Michael> smtp.gmail.com[173.194.203.108]: invalid parameter supplied) It looks to me like your gmail password has changed. Have you confirmed that your settings are correct and that the username/password still work? Michael> I have googled a lot, but I am not finding anything that matches this Michael> error message. I am not sure also what might have changed to cause Michael> this. Not sure if Google changed something or a package update broke Michael> something, etc. Michael> This is in Fedora 29, x86_64, postfix-3.3.1, and Michael> cyrus-sasl-lib-2.1.27-0.3rc7. Michael> output of postconf Michael> alias_database = hash:/etc/aliases Michael> alias_maps = hash:/etc/aliases Michael> command_directory = /usr/sbin Michael> compatibility_level = 2 Michael> daemon_directory = /usr/libexec/postfix Michael> data_directory = /var/lib/postfix Michael> debug_peer_level = 2 Michael> debugger_command = PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin ddd Michael> $daemon_directory/$process_name $process_id & sleep 5 Michael> html_directory = no Michael> inet_interfaces = localhost, $myhostname Michael> inet_protocols = ipv4 Michael> mail_owner = postfix Michael> mailq_path = /usr/bin/mailq.postfix Michael> manpage_directory = /usr/share/man Michael> meta_directory = /etc/postfix Michael> mydestination = $myhostname, localhost.$mydomain, localhost Michael> mydomain = my.domain Michael> myhostname = deathstar.my.domain Michael> mynetworks = 192.168.0.0/16, 127.0.0.0/8 Michael> newaliases_path = /usr/bin/newaliases.postfix Michael> queue_directory = /var/spool/postfix Michael> readme_directory = /usr/share/doc/postfix/README_FILES Michael> relayhost = [smtp.gmail.com]:587 Michael> sample_directory = /usr/share/doc/postfix/samples Michael> sendmail_path = /usr/sbin/sendmail.postfix Michael> setgid_group = postdrop Michael> shlib_directory = /usr/lib64/postfix Michael> smtp_sasl_auth_enable = yes Michael> smtp_sasl_password_maps = hash:/etc/postfix/sasl/passwd Michael> smtp_sasl_security_options = noanonymous Michael> smtp_tls_CAfile = /root/.acme.sh/my.domain/my.domain.cer Michael> smtp_use_tls = yes Michael> unknown_local_recipient_reject_code = 550 Michael> Any thoughts on what the error means and what I might need to change? Double check your gmail access outside of postfix, and make sure the password/username matches in your /etc/postfix/sasl/password file.
