On Tuesday 09/07/2019 at 2:14 am, Steve Perrault wrote:
> Mail rules question.
> Does a mail server parse the email header for email recipients, or
> does it only use the envelope recipients?
Good question, with all email servers, the message headers are NOT
read or used in any way to determine normal delivery, the sending
email client gives a list of recipients in the smtp protocol/envelope
before the message body is sent.
Some email client software will do what you suggest (command line
utilities typically) but it is almost never done at the server level.
Most likely they should look for a command line switch to make their
script use the headers.
> Someone is using a script to email To: firstname.lastname@example.org and Cc:
> email@example.com by sending a single email with the envelope recipient
> of firstname.lastname@example.org
> Will surgemail scan the header for To: and CC: addresses and deliver
> appropriately, or is the onus on the script to have an envelope
> recipient for each recipient?
> - SteveP
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