On Tue, May 6, 2014 at 8:26 PM, alister <alister.nospam.w...@ntlworld.com> wrote: > On Tue, 06 May 2014 19:47:54 +1000, Chris Angelico wrote: > >> On Tue, May 6, 2014 at 7:15 PM, alister >> <alister.nospam.w...@ntlworld.com> wrote: >>> On Mon, 05 May 2014 19:51:15 +0000, Grant Edwards wrote: >>> >>>> I'm working on a Python app that receives an e-mail message via SMTP, >>>> does some trivial processing on it, and forwards it to another SMTP >>>> server. >>>> >>>> I'd like to do the polite thing and add a "Received:" header, but I >>>> can't figure out how to get Python's email module to add it in the >>>> correct place. It always ends up at the "bottom" of the headers below >>>> From: To: etc. It's supposed to go at the above all the Received: >>>> headers that where there when I received it. >>> >>> Is this required or just being polite? >>> what I mean is does the standard state the headers must be in a >>> particular order or can they appear anywhere, you may be spending time >>> trying to resolve an issue that does not need fixing. >> >> Yes, it's required. RFC 2821 [1] section 3.8.2 says "prepend". >> >> ChrisA >> >> [1] http://www.ietf.org/rfc/rfc2821.txt > > oh well, so much for the easy route :-) > This suggests the email module could do with amending so that headers can > be pretended as appended.
Even if it's special-cased as a dedicated "prepend received header" method, that would probably do. I can't think of any other headers where you need to specifically order them rather than appending. ChrisA -- https://mail.python.org/mailman/listinfo/python-list