Alberto Bertogli b8551729db smtp: Try all entries in MX, not just the first one ...

Currently, we pick the first host in the MX list, and attempt delivery
there. If it fails, we just report the failure to the queue, which will
wait for some time and then try again.

This is not ideal: we should fall back to the other MXs in the list, as
the first host could be having issues for a long time, and not
attempting with the rest just delays delivery.

This patch implements the fallback, so we try all MXs before deciding to
report a failed delivery (unless, of course, an MX returned a permanent
failure).

2017-02-28 22:27:15 +00:00

..

aliases

Minor code aesthetic improvements, based on vet+fmt+lint

2016-10-21 22:13:39 +01:00

auth

Normalize domains

2016-10-10 00:51:05 +01:00

config

queue: Get the DSN domain from the message

2016-11-03 00:51:59 +00:00

courier

smtp: Try all entries in MX, not just the first one

2017-02-28 22:27:15 +00:00

domaininfo

Improve the readability of some log messages

2016-11-01 23:56:04 +00:00

envelope

Normalize domains

2016-10-10 00:51:05 +01:00

log

log: Add a symbol for Fatal log entries

2016-11-24 10:18:04 +00:00

maillog

Improve the readability of some log messages

2016-11-01 23:56:04 +00:00

normalize

Normalize domains

2016-10-10 00:51:05 +01:00

protoio

protoio: Add a generic protobuf store

2016-10-10 01:32:55 +01:00

queue

queue: Get the DSN domain from the message

2016-11-03 00:51:59 +00:00

safeio

safeio: Preserve file ownership

2016-10-21 22:18:53 +01:00

set

Implement a string set data type

2016-05-06 23:00:55 +01:00

smtp

Minor code aesthetic improvements, based on vet+fmt+lint

2016-10-21 22:13:39 +01:00

smtpsrv

smtpsrv: Fail to listen if there are no certificates configured

2016-11-24 10:09:11 +00:00

spf

spf: Support the "ptr" mechanism

2016-10-22 00:07:07 +01:00

systemd

Distinguish between SMTP and submission ports

2016-10-10 00:50:24 +01:00

tlsconst

internal/tlsconst: Add a package with TLS constants

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

trace

log: Replace glog with a new logging module

2016-11-01 23:56:04 +00:00

userdb

Normalize local usernames using PRECIS

2016-10-10 00:51:05 +01:00