Data 250 error when sending from some winsock applications.

[Mikael Hugo <mhugo@dataphone.se>]

When some of my customers try to send via winsock applications they get a:

An error occurred talking to the mailhost (DATA): "250 Ok" 

In the smtpserverlog I get:

5163# aborted: premature EOF on DATA input

Any idea? It works fine from unix where I work, and for some winsock 
applications.

When I specify a sendmail server instead of the master zmailer it goes well.

The mailserver is a SS20 with solaris 2.4 (incl patches) and zmailer 2.99.16

It is named nic.dataphone.se with cnames: mail (which the winsock users 
mail to), news, and dataphone.se. 

Regards

       Mikael Hugo

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