Mail delivery system, daemon delivery failure emails flood

[postcd]

Hello,

one cpanel account sent out bulk email and i had to suspend this account.
But after that and after restartign httpd and exim, im still seeing many emails comming into mailqueue:

"Domain ***.net has exceeded the max defers and failures per hour (10/10 (29%)) allowed. Message discarded."

Sender is: "[System]"

Recipient is:

[email protected]***.net/virtual_userdelivery ,
|/usr/local/cpanel/bin/autorespond [email protected]***.net /home/***/.autorespond:[email protected]***.net/virtual_aliases_nostar ,
[email protected]***.net

so im unsure why these are still added to the queue (like one email per 10 seconds last 80 minutes) i thought when account is suspended it wont generate any such mails. How can i stop it adding into queue please?

Update: /scripts/pkgacct accountname
and then terminate cpanel account appears to stopped emails, but question remains, how to prevent that flood in future? it was really hundreds of mails and load was increasing.

As a temporary solution i ran this script in "screen"

while true;do
exiqgrep -i -f '<>' | xargs exim -Mrm
sleep 10
done

it worked to prune system emails like ones mentioned above
but question mentioned above remains

 

[cPanelMichael]

Hello

Are you sure the messages were not already in the mail queue before you suspended the account?

Thank you.

 

[postcd]

im sure, they were comming in, as i refreshed mail queue page in WHM

 

[cPanelMichael]

Feel free to open a support ticket using the link in my signature so we can reproduce the issue. You can post the ticket number here so we can update this thread with the outcome.

Thank you.

 

[jols]

I am seeing this also, suddenly multiple accounts on multiple servers. And for each account, we are unable to find any correlation with bounced or rejected email. I did open a trouble ticket regarding this but have yet to receive a response. Ticket # 7084343

 

[cPanelMichael]

I am seeing this also, suddenly multiple accounts on multiple servers. And for each account, we are unable to find any correlation with bounced or rejected email. I did open a trouble ticket regarding this but have yet to receive a response. Ticket # 7084343

Hello

To update, it looks like the limit was reached due to failed messages in this case. The following document mail help to better explain how this option works:

Mail Limiting Feature

Thank you.

 

[000]

Hello

To update, it looks like the limit was reached due to failed messages in this case. The following document mail help to better explain how this option works:

Mail Limiting Feature

Thank you.

now in Aphril 2020 this return 404.

... some idea about how we can STOP

"Mail delivery failed: returning message to sender"

???