What is the best practice for relaying messages sent externally to a specific domain? I'm not talking about relaying from outside Ironport then back to your email servers. I'm talking about relaying the other direction. So for example your email server sends and email from abc.com to Ironport, I want something on Ironport that says any email from abc.com relay to this IP or domain. Can that only be done using a Outgoing Content Filter?
The goal is to have emails sent to a certain domain directed from Ironport to a vpn tunnel.
Depending on incoming vs. outgoing --- just create a content filter w/ alt-mailhost... and then also be sure to create an SMTP route for that alt-mailhost domain...
Similar to --->
SMTP route --->
In my example --- I'm not really routing anywhere --- so, I am using /dev/null.
Testing --- standard SMTP telnet --->
mail from: firstname.lastname@example.org 250 sender <email@example.com> ok rcpt to: firstname.lastname@example.org 250 recipient <email@example.com> ok data 354 go ahead subject: THIS IS A TEST HELLO . 250 ok: Message 202 accepted
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We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...