You can setup and run a mailserver with just a static IP. I suppose it will work with a dynamic IP as well.
The problem comes in when the other mail server is or is not configured to ask your mail server for your
MX and reverse PTR records. And if you do not have reverse PTR and MX records, the remote mail server will
not accept your mail, and that email will bounce. If it does not ask for your MX or reverse PTR records,
the mail should go thru. The "may ask" depends on how strict the remote mail server is configured.
Originally Posted by Achyut
1'st of all i want to say thanks to all.I want to configure mail server in Centos 5.5 .So i want to know what is the requirment and how to configure it.i want step by step,and my Linux system is connected in LAN ,and our server is different.Do i need a static ip for this?
Please reply ASAP
Thanks & Regards