> Outlook *does* indeed break long subject lines. Here's an
> example of a message I just sent using Outlook 2000:
It does not when I test (Outlook 2003 SP1, but also with Norton Antivirus,
dont know if this affects this). Other lines are split but not the subject.
> > Anyway, TCustomSmtpClient.DataNext would fail even when using
> > continuation lines every 74 char if the total length is
> longer than 1024.
> Again, this is a limit imposed by the protocol itself, so the
> application should guard against it.
> That said, I agree that the component could avoid potential
> buffer overflows if it included the check, just as long as it
> does not impact performance and functionality adversely.
Anyway, the RFC 821 says that the maximum line length including <CRLF> is
1000 chars. If I use a subject that is longer, and break the line at 74 with
<CRLF> and tab, the header-subject would be RFC-compliant, but the
smtp-component would crash.
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