Introduction link
When you manage Postfix and have a trouble with your mail infrastructure, you may want to set in maintenance your Postfix without stopping the service. Here is a way to hold the queue, giving the time to analyze the problem and then release the queue.
You need to configure your Postfix as follow (/etc/postfix/main.cf):
1
2
| defer_transports = hold
default_transport = hold
|
Then restart Postfix. Once you’re ready and want to release the queue, remove those two previous lines, restart Postfix and force the queue to release:
1
2
| service postfix restart
mailq -q
|
You can then look at the current status of deferred mails:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
| > qshape deferred
T 5 10 20 40 80 160 320 640 1280 1280+
TOTAL 250218 0 0 0 0 151 138 38983 182693 26188 2065
hotmail.fr 116169 0 0 0 0 0 3 18273 88228 9037 628
hotmail.com 45086 0 0 0 0 0 5 3119 31012 10646 304
live.fr 25418 0 0 0 0 0 1 4187 20547 538 145
gmail.com 18519 0 0 0 0 0 4 4448 12874 851 342
yahoo.fr 10174 0 0 0 0 105 4 2227 6785 920 133
msn.com 5833 0 0 0 0 0 1 427 4138 1239 28
laposte.net 3971 0 0 0 0 0 1 956 2633 347 34
free.fr 2501 0 0 0 0 0 0 139 1980 360 22
orange.fr 2382 0 0 0 0 0 0 605 1578 166 33
yahoo.com 1929 0 0 0 0 31 5 188 1428 151 126
voila.fr 1662 0 0 0 0 0 0 120 1231 298 13
sfr.fr 1373 0 0 0 0 0 0 164 1128 66 15
neuf.fr 1295 0 0 0 0 0 0 54 1040 195 6
outlook.fr 1037 0 0 0 0 0 1 383 619 15 19
wanadoo.fr 985 0 0 0 0 0 0 151 542 286 6
live.com 577 0 0 0 0 0 0 81 460 21 15
club-internet.fr 432 0 0 0 0 0 0 9 309 113 1
|
Last updated
04 Mar 2014, 17:35 +0200. history