sendmail supports a -V flag:

  -V <envid>
    Set  the  original envelope id.  This is propagated
    across SMTP to servers that  support  DSNs  and  is
    returned in DSN-compliant error messages.

[download]
.. which should result in a nice parsable string in bounce messages from compliant servers something like:
  Original-Envelope-ID: <envid>

[download]

I've looked at Mail::Send, Mail::Sender and Mail::Sendmail, and can't see support for setting this in any of those. Does anyone know of a mail-sending module that does support this field?

Update: for clarification, this is talking about the ESMTP 'ENVID' command, as described in RFC 3461.

Hugo

In reply to Sending mail: setting envelope id by hv

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