> quite a few administrators seemingly are oblivious to the fact that > they need a DNS entry corresponding to the network name of their > mail server.
You mean "a DNS entry corresponding to the HELO/EHLO argument?" Because they don't. > RFC 2821 4.1.1.1. EHLO or HELO > These commands are used to identify the SMTP client to the SMTP > server. The argument field contains the fully-qualified domain name > of the SMTP client if one is available. In situations in which the > SMTP client system does not have a meaningful domain name (e.g., > when its address is dynamically allocated and no reverse mapping > record is available), the client SHOULD send an address literal (see > section 4.1.3), optionally followed by information that will help to > identify the client system. Check through the EHLOs of the posters to this list. More than 50% of them do not send an FQDN. In some cases (MS products), you have no choice. -Sandy Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Please visit the Knowledge Base for answers to frequently asked questions: http://www.ipswitch.com/support/IMail/
