Tricia said:
Can you set a requirement that will not allow a sender to
send email without text in the Subject Field?
Outlook 2002
Windows XP
I've got 5 bucks riding on this.
The To, Cc, Bcc, and Subject fields are optional; these fields may
appear zero or one times. See RFC 2822, section 3.6, which defines the
minimum and maximum occurences of headers in an Internet message. If an
e-mail client enforces a requirement that these fields be non-blank then
it violates the RFC (and is providing that coverage as a courtesy and
because the omission of that header is considered improper by de facto
usage). The syntax for the Subject header, according to section 3.6.5,
is:
subject = "Subject:" unstructured CRLF
That means the rest of the line past the header tag is considered
unstructured and ends at the CRLF sequence, so a blank value is legal.
Outlook does not require that you to enter a non-blank value for the
Subject header since it is not a required header. Outlook Express also
does not require a non-blank Subject header but can be configured to
prompt you. You may be able to configure the SMTP server (used by the
sender) to refuse an e-mail if the Subject header is missing, but that
results in aborting the message send and returning an error message in
the sender's mailbox.
