• If you are still using CentOS 7.9, it's time to convert to Alma 8 with the free centos2alma tool by Plesk or Plesk Migrator. Please let us know your experiences or concerns in this thread:
    CentOS2Alma discussion

QMAIL Relaying

Z

ZopfWare

Regular Pleskian
It seems that all implementations of Qmail on Plesk servers are allowing email to APPARENTLY be relayed if the email address in the RCPT TO: contains an address like spamtest%abuse.net

It correctly rejects relaying (we have SMTP AUTH) if the address is of a standard [email protected], but seems to indicate via a 250 response that it has successfully relayed when the address is someone%somewhere.com

Because of thsi our servers are getting blacklisted as open relays on ordb.org and several other sites.


Does anyone know how to fix this?
 
You must log in or register to reply here.

Similar threads

L
Issue Mailer-Daemon does not send notifications to failed mail sender.
Replies
2
Views
1K
Peter Debik
P
T
Issue SMTPD No Auth from IP Issue
Replies
2
Views
1K
Tessxr
T
M
Forwarded to devs 554 5.7.1 <test@dömäin.tld>: Relay access denied;
Replies
12
Views
4K
carefreesmasher
C
M
Issue 554 5.7.1 <[email protected]>: Relay access denied;
Replies
6
Views
5K
matbcvo
M
P
Resolved Error code: (26) DNS lookup failure, failed SPF check for some incoming mails
Replies
7
Views
2K
powermove
P
Back
Top