topic Re: Redirect SMTP traffic in Network Security

Redirect SMTP traffic

Atlantauk — Mon, 11 Mar 2019 10:50:08 GMT

I have a ASA5520 that is the default route out of a network.

I need it to redirect all outbound smtp traffic to another gateway off the network.

I need the eqivalent of the following..

access-list 103 permit tcp any any eq smtp

route-map EMAIL permit 1

match ip address 103

set ip next-hop 10.1.1.31

Its the set ip next-hop that is not supported in the ASA - any ideas?

Cisco Adaptive Security Appliance Software Version 7.0(6)

Device Manager Version 5.0(6)

Re: Redirect SMTP traffic

srue — Thu, 26 Jul 2007 18:19:23 GMT

so you need to redirect all outbound smtp traffic to another smtp gateway, one that is not part of your network? but out on the net somewhere?

Can't you just configure a mail-relay on your email server?

Re: Redirect SMTP traffic

Atlantauk — Thu, 26 Jul 2007 18:25:51 GMT

I need to direct the SMTP traffic to an ISA firewall that has has an email archive application. So i need the ASA box not to let smtp traffic out to the internet but send it to another internal ip address.

Re: Redirect SMTP traffic

srue — Thu, 26 Jul 2007 18:59:46 GMT

Just point the mail server to the ISA firewall as a mail-relay.

*If* you are running MS Exchange, follow these instructions:

http://support.microsoft.com/kb/821911