Hello list ! Is there a way i can control forwarder addresses that the users set ?
Here is the encountered scenario: Users set a forward for the mailbox on my server to a remote yahoo address. This causes for all spam that they receive to be also sent to the yahoo servers which, in turn, will start to consider my server as a spamming one and keep deferring messages for large periods of times. This behavior disturbs other user's communications when yahoo addresses are involved since the legitimate messages are deferred for large periods of time also. My question is, if a limit on the forwarded e-mail addresses can be set to only local addresses. This is a preferred behavior unlike disabling forwards altogether. Thank you in advance for your answers and clarifications in case i mis understood the situation encountered.
