Grafana 4.1.1 Email Timeout Bug

When sending an E-Mail notification with three recipients its works fine, but when I add just one more the following Error is in the log:

t=2017-07-11T14:35:29+0000 lvl=info msg=“Sending alert notification to” logger=alerting.notifier.email addresses="[test@example.com test@example test@example]“
t=2017-07-11T14:37:34+0000 lvl=info msg=“Sending notification” logger=alerting.notifier type=email id=0 isDefault=false
t=2017-07-11T14:37:34+0000 lvl=info msg=“Sending alert notification to” logger=alerting.notifier.email addresses=”[test@example.com test@example test@example test@example]"
t=2017-07-11T14:37:44+0000 lvl=eror msg=“Failed to send alert notification email” logger=alerting.notifier.email error="dial tcp 34.248.158.154:25: i/o timeout"
t=2017-07-11T14:37:44+0000 lvl=eror msg=“Failed to send alert notifications” logger=context userId=1 orgId=1 uname=admin error="dial tcp 34.248.158.154:25: i/o timeout"
t=2017-07-11T14:37:44+0000 lvl=eror msg=“Request Completed” logger=context userId=1 orgId=1 uname=admin method=POST path=/api/alert-notifications/test status=500 remote_addr=::ffff:10.0.40.1 time_ms=10.005µs size=48

The AWS SES service has 100 mails/s and also the daily limit was not reached. Any ideas what could went wrong, when just adding one email address and fire another test notification?
I also tried this with , and ; and it results in the same outcome.

Regards,
Memnon

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No idea, what is going wrong here. Are these valid addresses? Does it work if you send a test email directly with AWS SES via the console: http://docs.aws.amazon.com/ses/latest/DeveloperGuide/send-an-email-from-console.html

Yes these are valid addresses and three emails were received just fine. I had another thought and it could be that our company’s smtp endpoint is rate limited/protected against too much requests.

In the end I solved it with a mailing list that is externally reachable.

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hi @memnon

could you please, let me know, how you got resolved the issue, because i am also facing same issue. I have created three notification channels where each channel includes three mail recipients, and my AWS SES have 40k mails , and per sec 14mails/sec. so here there is no problem with AWS SES.

could you please help me out.

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