TheLady02 said:
How do I set this up for my outgoing email?
Create an entry in your Contacts named "Undisclosed-Recipient" and put
your own e-mail address in it, then select it when sending the broadcast
e-mail to multiple recipients (that are presumably listed in the Bcc
field). You can always send yourself e-mail and, in this case, "you"
are "Undisclosed-Recipient". Your e-mail address is already in the From
header so including it in the To header divulges no more information
than was already there.
This will send yourself a copy of your broadcast message with
"Undisclosed-Recipient" in the comment portion of the To header (which
usually is the recipient's name you gave them). If you don't want the
message, define a rule to delete incoming messages where your e-mail
address is in the From header and "Undisclosed-Recipient" is in the To
header, as in:
Apply this rule after the message arrives
with "Undisclosed-Recipient" in the recipient's address
and with "yourname@yourdomain" in the sender's address
[permanently] delete it
and stop processing more rules
Since you probably have a copy of it in your Sent Items folder, you
probably don't want to receive it and move it to yet another folder for
a duplicate copy.
Note that according to RFC 2822 the To header is actually optional, as
are the Cc, Bcc, and Subject headers: they may appear zero or one times.
It is part of the *data* that the e-mail client sends to the mail server
in the DATA command and therefore there existence and content are under
control of the sender. However, some e-mail clients refuse to let you
send e-mails where the aggregate of recipients in the To and CC headers
equates to a blank or empty string, so just use a contact which is to
yourself and has a name of whatever you want. You might find your
e-mail gets blocked by anti-spam filters; "Undisclosed-Recipient" is
often a hit target for spam filtering. Instead you might want to use
"Mailing List", "<myname> Newsletter", "Multiple Hidden Recipients", or
whatever is appropriate for your broadcast message.