Beth F wrote:
> how do you folks deal with email relaying blocking at your sites.
> 
> our email admin of course has email relaying blocked, so I can't send any messages 
>outside the firewall from CF.  

Uni network here has 2 /16 that are allowed to deliver at the local 
smarthost. So that means that the server lan can also just drop it off 
at the smarthost.
Incoming port 25 connections from outside the LAN are blocked at the 
router, except if they are going to one of the mail gateways. All 
mailservers inside have secondary and tertiary MX records set up so tat 
after the connection directly from the outside to the mailserver fails a 
retry is done to one of the mail gateways.

It is pretty complicated to set up initially, but it allows students in 
dorms to run mailservers if they want, without being vulnerable to any 
open relay problems.

Jochem

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