Large Exim Queue - How to speed up local delivery / remote sending

KrisG

Member
Aug 12, 2016
8
3
3
Waterloo, Ontario, Canada
cPanel Access Level
Root Administrator
I have on average about 80-120 (legitimate) emails sitting in Exim's queue between retries (I upped it to 10 minutes from 5 minutes because it didn't seem to make a difference), just looking for tips on how to decrease that.

Due to the large number of emails in the queue it takes about 30 minutes to process (lapsing the 10 minute Exim retry timeout).

Attached is a sent summary of my average day... it's not much, so I don't know why all of the sudden delivery is taking so long.

Load Average isn't high, even when doing a queue run:
  • Load Averages: 1.60 1.89 2.23
 

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KrisG

Member
Aug 12, 2016
8
3
3
Waterloo, Ontario, Canada
cPanel Access Level
Root Administrator
Since this post I have reset Exim to it's cPanel default and though now when I click "Deliver All" in the queue of 80-150 it seems to send / deliver one email per second, it's no-where near what it used to be (this all started Monday - nothings changed since then).

I have full access to the VPS, hypervisor, and rack - my switches are GB, and the VM is getting ~145.82Mb/s both up and down.
 

cPanelMichael

Administrator
Staff member
Apr 11, 2011
47,911
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Since this post I have reset Exim to it's cPanel default and though now when I click "Deliver All" in the queue of 80-150 it seems to send / deliver one email per second, it's no-where near what it used to be (this all started Monday - nothings changed since then).
Hello,

You may also want to review the disk I/O statistics on this system to see if that's the culprit. There's a thread here where information on how to check the disk I/O activity is discussed:

Troubleshooting high server loads on Linux servers

Thank you.