>Does anyone know if there is a maximum size that a single header field is
>allowed to be? To some outgoing messages I need to add an additional field
>to the header. The data within that field can get large (probably not
>larger than 512 bytes, but it's possible).
as you can see in the SMTP security settings, one way to crack a mail
server is to try "buffer overflow" the header buffer. You'd have to look
at the RFC's 821, etc to see whether there is a max length. I got a
feeling that there is no well-defined limit. The important issue is how
the SMTPD server handles humongous header lines.
Len
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