Block/Filter Sending mails to a specific domain

[rasoft2000]

Hey guys,

I'm looking for a way to block all mail send to a specific domain @example.com from @mydomain.com.

I had been searching for this in the forums, wiki and google and no luck at all, I found a lot of info on blacklisting incoming mail but not outgoing and limiting certain users to send mail to specific domains.

But what I'm trying to do is different cause I want to block/filter all my users trying to send mail to that specific @example.com domain, if you can even send just a reply mail and not blocking will work too.

Sorry if this was covered already but I couldn't find it.

Thanks for any help you can give me.

[enriluis]

me too
i want block/filter all my users/groups trying to send mail to that specific @example.com domain

[rasoft2000]

I know this can be accomplished with content inspector software but I was looking if I can acomplish this with postfix.

Thanks.

[uxbod]

RestrictPostfixRecipients - Zimbra :: Wiki
Restrict sending to certain domains - Zimbra :: Wiki

[rasoft2000]

Originally Posted by uxbod

RestrictPostfixRecipients - Zimbra :: Wiki
Restrict sending to certain domains - Zimbra :: Wiki

Hey thanks for your reply.

I tried the first wikki already some time ago to restrict my distribution list on my domain and worked perfect but as stated in the wikki:
"This will show how you can modify postfix to restrict who can send to certain addresses in your domain such as distribution lists like all@mydomain.com" This is for external mail trying to reach my domain and were trying to do viceversa here.

About the second one I had high hopes on that when I frist found it but sadly that only restrict "certain" users so they can send mail to "certain" domains, and were trying to block all users sending mail to a specific domain maybe that can be tweaked to accomplish that, sadly Im not a postfix expert.

Thanks again for your reply.