Everything related to mail, including email accounts, combating spam using Apache SpamAssassin®, Dovecot, Courier, Exim, RBLs and more

Limit e-mail sendig
3 comments
x headers and Received from
10 comments
IP address blocked from failed login attempts
4 comments
ISP msg rate limit
3 comments
Mail delivery problem to Gmail email
7 comments
SMTP_BLOCK keeps turning ON
2 comments
IMAP/POP SSL Failed SNI
26 comments
Cannot verify server identify error message in MacOS/iphone email app
6 comments
Unable to login to webmail via Safari when private relay is on
5 comments
DNS record autodiscover
8 comments
Site and mail on separate servers
0 comments
Outbound email issues for one domain
4 comments
Email delivery issues using Outlook
15 comments
[Exim] Apply custom filter only to incoming messages
0 comments
Root email from address?
3 comments
Receive and send email to own domain only
3 comments
Problems Exist (Reverse DNS)
2 comments
Use SendGrid for Server Notification Emails for WHM/cPanel on Google Cloud
0 comments
Email can be received but not send
7 comments
Domain exceeded max defers and failures per hour
2 comments
550-The mail server does not recognize ****@***** as a valid sender
9 comments
CPANEL-38632 - Horde spell check stopped working
2 comments
Recent DKIM record format change?
0 comments
Facing error of "The mail server detected your message as spam"
7 comments
How Can I enable DKIM under the updated version of Cpanel?(Please help me out)
0 comments
How to Configure Spamassassin Trusted_Networks
14 comments
550 Too many MIME parts
3 comments
Disable SMTP/Exim
3 comments
Possible rDNS issue
3 comments
550 Invalid RDNS entry for xxx.xxx.xxx.xxx
8 comments