Incorrect handling of '.' character in IMP 2.3

[Ray Jackson]

Hello,

I spotted a bug with IMP 2.3.7-cvs - If you compose a message and 
include a line containing a single '.' e.g.

.

Then anything below that dot is not sent in the message and we see 
errors in our sendmail logs.  Now, of course the reason is that '.' is 
used in SMTP to close a connection - so obviously the '.' is not being 
escaped properly as normal mail clients do to avoid SMTP interpreting 
the '.' in the body as a Close Connection instruction.

Is this a PHP problem or rather an IMP specific problem?

Cheers,
Ray