[RFCI-Discuss] about FQDN for our smtp servers

[Jeff Pang]

If I send a HELO with a resolvable FQDN but that FQDN does not point to the correct sender IP,was I right?
For example,202.108.5.84 is one of our MTAs,whose A record is: m5-84.163.com
Now a HELO sent from  this MTA with a FQDN as 'm6-84.163.com',I think it's not right.
So,I think the 'resolvable FQDN' should be 'resolvable and correct FQDN'.Isn't it?

>> By definition the argument must be a FQDN.  An FQDN is defined as
>> something resolvable, I forget the specific location where it is so
>> defined. Thus, if you HELO with something that isn't resolvable, it
>> isn't an FQDN, and therefore you have not HELO'ed in a syntactically
>> valid manner.


--
Jeff Pang
NetEase AntiSpam Team
http://corp.netease.com