Try to login into Alertmanager pod and try if your able to resolve DNS from alertmanager pod?
On Tuesday, September 29, 2020 at 5:14:53 PM UTC+8 Moritz Tanzer wrote: > 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/1a54068b-7cf4-4d60-ab3d-a6fa843a76e0n%40googlegroups.com.
