LL said:
Can anyone tell me how I can determine what the maximum number of
recipients/email addresses I can enter in the bcc: field of an email in
Outlook 2003?
The total number of recipients per e-mail regardless of whether they are
specified in the To, Cc, or Bcc fields (which your mail server doesn't
care about because that is in the *data* of the message) is determined
by your e-mail provider. Ask them.
Your e-mail client compiles an aggregate list of recipients from the To,
Cc, and Bcc fields in its UI. From that list, it sends a separate
RCPT-TO command to the mail server. The mail server doesn't care what
are in the To, Cc, and Bcc fields inside the *data* of the message, only
what RCPT-TO commands it got to specify the recipients. Then the e-mail
client sends the DATA command to send your message (which includes the
To and Cc fields as *data*). For N recipients, and regardless of which
field used in the client's UI, there are N RCPT-TO commands sent to the
mail server followed by one DATA command. The mail server hasn't a clue
nor would it even care in which field (To, Cc, or Bcc) the recipient was
specified. That's part of the data of the message and is NOT used in
routing the e-mail.