How to add addresses to the BCC field using Rebol's SEND function?

Question

I'm trying to send an email using SEND in Rebol 2:

send [email protected] "A Message"

How do I BCC a second address? I've tried the following without success:

send/header [email protected] "A Message" make system/standard/email [
    BCC: [email protected]
]

This still goes to the first recipient, but not the BCC address. Is this a misunderstanding of how BCC works?

Also, using a custom header no longer copies part of the message for the subject line, but not so worried about that...

score 1 · Answer 1 · edited May 23 '17 at 12:08

1

The correct way for BCC is to put the same address to TO as well:

send/header [
    [email protected] [email protected]
] "A Message" make system/standard/email [
    bcc: [email protected]
]

You TRACE/NET ON to see the difference with and without adding TO.

And here you can find a similar question:

edited May 23 '17 at 12:08

Community

answered Nov 21 '15 at 08:25

endo64

As far as I can tell, this sends the same message twice to the SMTP server and other recipients can see who's in the BCC line. – rgchris Nov 21 '15 at 08:56
The [second answer](http://stackoverflow.com/a/26611044/292969) on that page correctly describes the behaviour I'm looking for. See: http://codereview.stackexchange.com/q/111395/46291 – rgchris Nov 21 '15 at 08:58
I tested the above code, other recipients cannot see the address in BCC. But I think you are right that it sends the same msg twice. – endo64 Nov 21 '15 at 13:10
Some receiving servers will strip the BCC field en route, others won't. It seems the only certain way to prevent it being shared is to strip prior to sending. – rgchris Nov 21 '15 at 19:16

1 Answers1