Hello *,

Courier 0.65/Debian, for a particular message, says:

---------------------------------------------------------------------------

                           UNDELIVERABLE MAIL

Your message to the following recipients cannot be delivered:

<i...@domain.com>:
    mx.domain.com [xx.xx.xx.xx]:
>>> DATA
<<< 552 5.2.0 Invalid 7bit DATA

This happens while a user is trying to send a message with an attachment to 
i...@domain.com, using Courier as outgoing SMTP server.

Is there anything I can do on the Courier configuration? Although seems to me 
it's the remote SMTP complaining, and not Courier itself, I suspect Courier 
has something to do with that because that happens only since the migration to 
Courier.

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