Is SMTP Restriction necessary if using Remote Mail Exchanger?

Operating System & Version
11.102.0.16
cPanel & WHM Version
centOS v7.9.2009

msklut

Well-Known Member
May 24, 2020
62
5
8
NC
cPanel Access Level
Root Administrator
We have our email hosted with Google Suite and 'Email Routing' is set to 'Remote Mail Exchanger.' Is there any benefit to enabling SMTP Restriction in WHM » Security Center?
 

techAMIGO

Active Member
Nov 6, 2019
33
30
18
Kerala, india
cPanel Access Level
Root Administrator
Hi, @msklut

SMTP Restrictions is a feature in WHM that stops users from bypassing the mail server to send mail. You'll only receive mail from root connections, Mailman mailing list software, and mail transport agent (MTA) to remote SMTP servers by setting up restrictions. This service is useful because bypassing mail servers is a common practice of spammers.

so you should enable it.
 
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Rachel S

Member
Apr 28, 2022
22
4
3
United States
cPanel Access Level
Website Owner
WHM's SMTP Restrictions tool prevents users from sending mail without going through the mail server.
Because spammers frequently bypass mail servers, this tool is beneficial, and so it's better if you enable SMTP Restriction afterward, you'll only receive mail from root connections, Mailman mailing list software, and the mail transport agent (MTA) to distant SMTP servers by configuring limits.
 
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