Thanks for your reply! I tried it with version 0.19.0, 0.20.0 and 0.21.0
IP address is 100% correct configured in the Gsuite relay settings. I can connect from command line as you mentioned and I can send mails from this host with local postfix using smtp-relay.gmail.com as relayhost. [email protected] schrieb am Dienstag, 29. September 2020 um 11:07:12 UTC+2: > Alertmanager version? > > Try logging into the same host where alertmanager runs, and running the > following: > > openssl s_client -connect smtp-relay.gmail.com:587 -starttls smtp > ehlo mydomain.com > mail from:<[email protected]> > > See if you get an error like this: > > 550-5.7.0 Mail relay denied [<address>]. Invalid credentials for > 550-5.7.0 relay for one of the domains in: mydomain.com (as obtained from > HELO and > 550-5.7.0 MAIL FROM). > 550-5.7.0 Email is being sent from a domain or IP address which isn't > registered > 550-5.7.0 in your G Suite account. Please login to your G Suite account and > 550-5.7.0 verify that your sending device IP address has been registered > within > 550-5.7.0 the G Suite SMTP Relay Settings. For more information, please > visit > 550 5.7.0 https://support.google.com/a/answer/6140680#maildenied > > One possibility is that your host has gained a new external IP address (on > IPv6 perhaps?) which has not been registered. > -- You received this message because you are subscribed to the Google Groups "Prometheus Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/prometheus-users/63ca0bd6-6614-4bb6-8d53-8052d622397an%40googlegroups.com.
