how to sendmail with non-anonymous user

[jaminlai]

hi, we want to notify message with alertmanager by send email.

however,the smtp server response 'Client was not authenticated', the detail tcp produce as below:

220 GD2-CAS01.corp.aaa.com Microsoft ESMTP MAIL Service ready at Fri, 20 May 2016 15:47:13 +0800
EHLO localhost
250-GD2-CAS01.corp.aaa.com Hello [10.xx.xx.xx]
250-SIZE 36700160
250-PIPELINING
250-DSN
250-ENHANCEDSTATUSCODES
250-STARTTLS
250-AUTH LOGIN
250-8BITMIME
250-BINARYMIME
250 CHUNKING
MAIL FROM:<san.zhang@aaa.com> BODY=8BITMIME
530 5.7.1 Client was not authenticated
QUIT

I think that the go connect smtp without carry the SMTP_AUTH_USERNAME and SMTP_AUTH_PASSWORD so take me as anonymous user

Here is the part of alertmanager.yml configure:

global:
  # The smarthost and SMTP sender used for mail notifications.
  smtp_smarthost: '192.xxx.xxx.xxx:25'
  smtp_from: 'san.zhang@aaa.com'
  smtp_auth_username: '****'
  smtp_auth_identity: '****'
  smtp_auth_password: '****'

and I have also set 2 environment variables:
SMTP_AUTH_USERNAME=xxx
SMTP_AUTH_PASSWORD=xxx

please help me ,thanks

[brian-brazil]

http://www.robustperception.io/sending-email-with-the-alertmanager-via-gmail/ should put you down the right path.

[jaminlai]

@brian-brazil Thanks you very much.

I have change the another alertmanager edition by your suggestion, and so that it seems to pass auth success.

However, now caught another exception with:

WARN[1200] Notify attempt 2 failed: starttls failed: x509: cannot validate certificate for 192.168.xx.xx because it doesn't contain any IP SANs source=notify.go:193

Should I close the cls configure? How can I deal with it, it seems I can't change the alertmanager code if released.

Thanks you very much again!

[swerter]

Hi jaminlai, this looks to me that you created the certificate by yourself, or you have a certificate for a fqdn but access it via an IP address. Maybe also have a look at this thread, seems to me pretty similar to your issue: elastic/logstash-forwarder#221. Hope that helps you further.