Use New Authentication Process for Each Connection


Product Owner
Staff member
Nov 14, 2017
As the information in WHM>>Service Configuration>>Mailserver Configuration states:

Specifies whether to use a new login process for each new POP3 or IMAP connection. Setting this to yes may improve the security of the Dovecot authentication processes, but doing so imposes a significant performance penalty on heavily loaded servers.
This is not related to spam at all, not if your outgoing spam issues are from authenticated users who have a password compromise. A pop3 or imap client can make multiple connections in one session, this is dictating whether or not you want each of those processes from that user to be authenticated.