Cisco PIX & ASA Host name in greeting fix

If it appears to be all (***) instead of your mail hostname and if you get, “550 Sorry, your HELO/EHLO greeting must resolve (#5.7.1)” error when sending mail to your mail server from outside, run the following command in your CISCO firewall: 
no fixup protocol smtp 25

and save with the “wr mem” command
  • 6 Users Found This Useful
Was this answer helpful?

Related Articles

Routing, a Brief Introduction

Introduction Routing is the process of finding the route to a destination, and routing protocols...

Learn your IPv6 & test your IPv6 enabled site with ip6tools.com

A new service announced by VeriTeknik to help developers getting into IPv6 world. You may test...

Nmap : Scanning Methods

Earlier we’ve discussed target specificationin detail. But it is almost as import to choose...

Cisco Router IPv6 Configuration

In the beginning of the year 2011, we decided to apply IPv6 configuration to our data center...

Ephemeral port range for FTP

The standart linux distrubition calls that the ephemeral port range be between 1024 and 4999. We...