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Re: Data 250 error when sending from some winsock applications.
On Fri, 3 Nov 1995, Mikael Hugo wrote:
> When some of my customers try to send via winsock applications they get a:
>
> An error occurred talking to the mailhost (DATA): "250 Ok"
I've seen this with mail clients that don't understand continuation
lines. They don't provide a correct hostname, so Zmailer gives a
multi-line warning. However, the client only reads the first line, and
leaves the rest in buffer, and everything keeps working until the client
does a "DATA" command and gets a "250" response from a previous command,
when it is expecting "343".
Failure to reconize continuation lines violates RFC 821.
BTW, this sounds a lot like EMC, as it has broken in this regard for
months. PMAIL for os/2 also has some interesting non-conformance bugs.
I recommend Eudora for Windows users. It very good in it's compliance
to internet standards.
Tom