How to fix error starting mailman on cPanel server

The mailman error I got looks as below:

[email protected] [/usr/local/cpanel/3rdparty]# /usr/local/cpanel/scripts/restartsrv –wait –force mailman
Waiting for “mailman” to start ……info [restartsrv_mailman] systemd failed to start the service “mailman” (The “/usr/bin/systemctl restart mailman.service –no-ask-password” command (process 444759) reported error number 1 when it ended.):

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How to reset max defers limit on cPanel server

You may got:

2022-07-28 14:43:22 1oH9Pk-111Cld-8x ** [email protected] R=enforce_mail_permissions: Domain domain.com has exceeded the max defers and failures per hour (5/5 (100%)) allowed. Message discarded.

To reset:

/var/cpanel/email_send_limits/track/domain.com

If the limits too tiny on your server then adjust them per your needs:

sed -i -e 's/MAX_DEFER_FAIL_PERCENTAGE=.*/MAX_DEFER_FAIL_PERCENTAGE=125/g'
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How to generate Self-Signed SSL on cPanel server using command line

Run and put your domain:

read -p "Domain: " domain; username=`/scripts/whoowns $domain`; email=`grep @ /var/cpanel/users/$username |tail -n1 |cut -d '=' -f2|sed -e 's/@/\%40/'`; whmapi1 generatessl domains=$domain countryName=US stateOrProvinceName=Texas localityName=Houston organizationName="The Justice League of GG" emailAddress=$email pass=`openssl rand -base64 15` keysize=2048 skip_certificate=0

Now use WHM to install it

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How to update reseller’s subaccounts disk quota and bandwidth on cPanel server

Useful if you have plan limited by:

– limitation by amount of cPanel accounts
– bandwidth limitation
– disk space limitation
– overselling disabled

Update reseller’s packages with new limits via command line

sed -i -e "s/QUOTA=.*/QUOTA=2000/g" /var/cpanel/packages/resellerusername_*
sed -i -e "s/BWLIMIT=.*/BWLIMIT=20000/g"
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