1. 

   telvenes Member

   Hi, i use a external spamfilter, and problem now is that spam get delivered directly to my server, how can ispconfig only accept mail from the spamfilter?

    

   telvenes, Dec 7, 2016

   #1
2. 

   till Super Moderator Staff Member ISPConfig Developer

   One possibility is to use a iptables rule to limit access to port 25 to the ip address of the spamfilter.

    

   till, Dec 7, 2016

   #2
3. 

   telvenes Member

   Fixed like this:
   
   iptables -A INPUT -p tcp --dport 25 -s spamfilterIP -j ACCEPT
   iptables -A INPUT -p tcp --dport 25 -j DROP

    

   telvenes, Dec 7, 2016

   #3

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