The exim delivery queue size

[wp11b]

i got this report from cpanel server.

The exim delivery queue size is 4720

how to fix it ? is this because mail size over 4720byte?

[wp11b]

after i check exim there are many bounce queue, thats come from fake domain to fake user@aaa.com

is there any way to prevent this? please share

[cPanelDavidG]

after i check exim there are many bounce queue, thats come from fake domain to fake user@aaa.com

is there any way to prevent this? please share

Enabling Sender Verification in WHM -> Service Configuration -> Exim Configuration Editor in the Mail section can curb this.

However, the effect of this is mail sent from any non-existent addresses will also be blocked. This can include legitimate but automatically generated messages from websites with forums or sign-up forms (such as emails with a reply address of do-not-reply@...).

[wp11b]

i have enable Enabling Sender Verification before i got this.
but Sender Verification Callouts not enable yet. is Sender Verification Callouts need enable to?

[cPanelDavidG]

i have enable Enabling Sender Verification before i got this.
but Sender Verification Callouts not enable yet. is Sender Verification Callouts need enable to?

For this particular situation, yes, you would need to enable that as well. This option does not appear until you enable Sender Verification.