You could change the mail server configuration to allow PLAIN/LOGIN/CRAM-MD5 like you said, or to allow relaying with no authentication from your alertmanager's IP address. That would be simplest.
Or you could install a local mail server (e.g. postfix), point alertmanager at it (localhost:25), and configure it to send all outgoing mail via the upstream mailserver with NTLM authentication. https://www.postfix.org/postconf.5.html#relayhost https://www.postfix.org/postconf.5.html#smtp_sasl_password_maps https://www.linuxquestions.org/questions/linux-newbie-8/configure-postfix-to-relay-to-exchange-server-with-ntlm-authentication-4175410961/ On Tuesday 5 November 2024 at 17:28:43 UTC Prabhu ilamathi wrote: > Hi Brian, > > Thanks for your reply and I had identified that my mail server is having > NTLM auth type and alert manager is not supporting for NTLM. Do you have > any suggestion for this scenario than changing the mail server itself ? > > Thanks > > On Tue, 5 Nov 2024 at 6:13 PM, 'Brian Candler' via Prometheus Users < > [email protected]> wrote: > >> What makes you think the problem would be fixed by a proxy - what *exact* >> error message are you seeing? And what sort of proxy are you thinking of? >> >> If it's an SMTP proxy then you just point alertmanager at it for sending >> mails. If it's a SOCKS5 proxy then that functionality is not built-in to >> alertmanager, so you'd have to run a standalone proxy that listens on a >> port on localhost and makes an outbound TCP connection via the proxy. >> (Maybe nc or socat could do that). If it's some other sort of proxy then >> you'd have to explain what you mean. >> >> It might make more sense to put your alertmanager in a position in the >> network where it can make the necessary network connections it needs. >> >> On Tuesday 5 November 2024 at 16:30:10 UTC Prabhu ilamathi wrote: >> >>> Hi All, >>> >>> Right now am using the alertmanager.yml configured to use the smtp >>> server details. but am unable to send the emails, so i am thinking proxy >>> would be resolving it , could you please help me with some examples on >>> implementing the same ? >>> >>> Thanks, >>> Prabhu >>> >> -- >> 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 visit >> https://groups.google.com/d/msgid/prometheus-users/7770c70a-726c-4d48-8d23-453fff08e14an%40googlegroups.com >> >> <https://groups.google.com/d/msgid/prometheus-users/7770c70a-726c-4d48-8d23-453fff08e14an%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- 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 visit https://groups.google.com/d/msgid/prometheus-users/52ab8ecf-e506-44dc-935c-ce4dc82ef0a7n%40googlegroups.com.
