Thanks for your input! DNS resolution works as expected. [email protected] schrieb am Dienstag, 29. September 2020 um 11:40:49 UTC+2:
> 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/8c4891c0-c555-4f33-8e63-f65be7d9d134n%40googlegroups.com.

