Calculating SMTP server from email address
Delmer Harris
dharris at kcp.com
Wed Aug 16 15:54:44 UTC 2000
Use 'dig mx @your-DNS-host mymail.com' to find the MX record for
mymail.com. That will tell you which system(s) mymail.com is using for
e-mail gateways.
Alan Magrath <amagrath at my-deja.com> on 08/16/2000 07:41:39 AM
To: comp-protocols-dns-bind at moderators.isc.org
cc:
Subject: Calculating SMTP server from email address
Many email addresses are of the form:
john at mymail.com
peter at yourmail.com
but the "host" name after the "@" symbol is often not a registered DNS
name. Often, the SMTP server name is:
smtp.mymail.com
smtp.yourmail.com
or
mail.mymail.com
Is there an easy way of finding out what the SMTP server DNS name is
from the email address? Should I just look at the leaf nodes of any
given DNS name and look for "smtp" or "mail"? Is there a convention?
Thanks
Alan
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