Alberto Bertogli 0e41821779 smtp: Distinguish permanent errors ...

This patch makes the SMTP courier distinguish permanent errors, so the queue
can decide whether to retry or not.

It's based on the SMTP replies: 5xy is considerent permanent, anything else is
transient (including errors other than protocol issues).

2016-10-10 00:51:04 +01:00

..

smtp_test.go

smtp: Distinguish permanent errors

2016-10-10 00:51:04 +01:00

smtp.go

smtp: Distinguish permanent errors

2016-10-10 00:51:04 +01:00