[RFCI-Discuss] about FQDN for our smtp servers

[Jeff Pang]

Helo,all,

I'm a little confused from your discussion.Is the MX record a correct FQDN or not?
For example,when I 'dig 126.com mx',I got:

126.com.                1786    IN      MX      50 mx.126.split.netease.com.

mx.126.split.netease.com. 436   IN      A       220.181.15.131
mx.126.split.netease.com. 436   IN      A       220.181.15.132
mx.126.split.netease.com. 436   IN      A       220.181.15.133
mx.126.split.netease.com. 436   IN      A       220.181.15.134
mx.126.split.netease.com. 436   IN      A       220.181.15.135

Then,could I use 'mx.126.split.netease.com' for my helo domain?

And,when a helo domain don't match the client,the receiver MTA should reject this connect or not,it also seems a little astatic.Most of domains receive our messages even if we use bad helo domains,but SINA (mail.sina.com.cn) send us a warning declaring that they would reject our messages if we don't use standard helo domains.

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