Queue active for long time

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Queue active for long time

Burn Zero
Hi,

We are having postfix as on-premise SMTP server and we send email via this SMTP server to O365 cloud.

Recently we got throttled by MS and our queue size increased in postfix. I was checking the logs and I found these queue active messages that stayed for long time.

( I have removed some parts of the logs such as FROM id, date, etc for privacy ).

10:54:53 postfix/qmgr[17439]: 748044070E:  nrcpt=1 (queue active)
10:55:11 postfix/qmgr[17498]: 748044070E:  nrcpt=1 (queue active)
11:30:35 postfix/qmgr[18474]: 748044070E:  nrcpt=1 (queue active)
11:31:01 postfix/qmgr[18547]: 748044070E:  nrcpt=1 (queue active)
11:55:14 postfix/qmgr[19171]: 748044070E:  nrcpt=1 (queue active)
11:55:33 postfix/qmgr[19234]: 748044070E:  nrcpt=1 (queue active)
11:55:52 postfix/qmgr[19298]: 748044070E:  nrcpt=1 (queue active)
12:30:49 postfix/qmgr[20241]: 748044070E:  nrcpt=1 (queue active)
12:31:11 postfix/qmgr[20318]: 748044070E:  nrcpt=1 (queue active)
12:55:57 postfix/qmgr[22129]: 748044070E:  nrcpt=1 (queue active)
12:56:14 postfix/qmgr[22213]: 748044070E:  nrcpt=1 (queue active)
12:56:30 postfix/qmgr[22274]: 748044070E:  nrcpt=1 (queue active)
13:23:38 postfix/qmgr[23723]: 748044070E:  nrcpt=1 (queue active)
13:30:35 postfix/qmgr[24057]: 748044070E:  nrcpt=1 (queue active)
13:31:00 postfix/qmgr[24129]: 748044070E:  nrcpt=1 (queue active)
13:54:50 postfix/qmgr[24887]: 748044070E:  nrcpt=1 (queue active)
13:55:03 postfix/qmgr[24974]: 748044070E:  nrcpt=1 (queue active)
13:55:19 postfix/qmgr[25038]: 748044070E:  nrcpt=1 (queue active)
14:00:47 postfix/qmgr[25451]: 748044070E:  nrcpt=1 (queue active)
14:09:17 postfix/qmgr[25704]: 748044070E:  nrcpt=1 (queue active)
14:12:37 postfix/qmgr[25904]: 748044070E:  nrcpt=1 (queue active)
14:30:36 postfix/qmgr[26528]: 748044070E:  nrcpt=1 (queue active)
14:31:08 postfix/qmgr[26618]: 748044070E:  nrcpt=1 (queue active)
14:42:03 postfix/qmgr[26946]: 748044070E:  nrcpt=1 (queue active)


There were some messages why we got throttled etc, but my question is why postfix is showing only queue active message over the long time and why not it didn't show / try connecting to the MS server? Seems like over the time , it didn't try connecting to the MS server but just showing queue active?

Thank you.
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Re: Queue active for long time

Wietse Venema
> 14:00:47 postfix/qmgr[25451]: 748044070E:  nrcpt=1 (queue active)
> 14:09:17 postfix/qmgr[25704]: 748044070E:  nrcpt=1 (queue active)
> 14:12:37 postfix/qmgr[25904]: 748044070E:  nrcpt=1 (queue active)
> 14:30:36 postfix/qmgr[26528]: 748044070E:  nrcpt=1 (queue active)
> 14:31:08 postfix/qmgr[26618]: 748044070E:  nrcpt=1 (queue active)
> 14:42:03 postfix/qmgr[26946]: 748044070E:  nrcpt=1 (queue active)
>
> There were some messages why we got throttled etc, but my question is why
> postfix is showing only queue active message over the long time and why not
> it didn't show / try connecting to the MS server? Seems like over the time
> , it didn't try connecting to the MS server but just showing queue active?

See http://www.postfix.org/TUNING_README.html#hammer. This describes
how Postfix avoids sending mail to a site that defers all mail.

        Wietse
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