Ticket #663 (closed defect: duplicate)
mail trap allows interference in email delivery capturing client mails to external mailservers in local postboxes
|Reported by:||petzsch||Owned by:|
|Priority:||critical||Milestone:||ispCP ω 1.0 - RC3|
|Component:||Backend (Engine)||Version:||ispCP ω 1.0.0 - RC2|
|Severity:||Keywords:||postifx, mail trap|
If a reseller adds a public/common domain for instance web.de or gmx.de to his account and sets up a catchall for the emails of this domain, than all mail send from other users on the same server to those mail adresses get deliverd locally and can therefore be intercepted.
Is there a possibility to configure Postfix to first check DNS resolution before atempting to deliver mail localy?