Need experts help

  • From: "Zafar Pravaiz" <zafar.pravaiz@xxxxxxxxx>
  • To: exchangelist@xxxxxxxxxxxxx
  • Date: Sun, 16 Feb 2003 03:26:48 -0700

Hi to all

We r  running Exchange 5.5 which is ESMTP enable. Some users r sending
mail to a particular domain and getting NDR saying send hello first. i
have try to investigate the matter and telnet on 25 port of that domain
and found that it is not recognizing EHLO command which is default ESMTP
command. thats why all mails r bouncing back. Other side they r using
Exchange 2000. I wana know how we can resolve this issue. I dont want to
disable my ESMTP. what other setting can be done on other end so that they
can accept EHLO command. I guess they r using some firewall or SMTP

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