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Re: Invalid email headers [message #188159 is a reply to message #188158]

Tue, 20 July 2021 13:33

omiak
Messages: 4
Registered: July 2021

Karma:

Junior Member

Hi all,

Provided that the addresses contained @ and . characters and not the replacement (at) and (dot), all those headers now seem to be correct. At least I can't see any incorrect syntax in them. Hence, if Jean's server refuses them I suppose that it is a bug in his server itself, not in FUDforum.

In order to try and find what the bug could be, I will go through each header.

Received:
This is correct according to RFC 5322 and 5321. Note however that the third line is 81 characters long, which should be too long for a MIME-encoded header (max 76), but there is no such limitation for other kinds of headers. The only one limit is 998 characters long, and we are far from it.

Subject:, Date:, To:, From:
They are all correct according to RFC 5322 (and 2822 which is the older version of 5322).

Return-Path:
Now correct.

X-Mailer:
Non standard, and as such it has no effective syntax requirement. But I will say more in another response to come.

MIME-Version:, Content-Type:, Content-Transfer-Encoding:
They are correct together, according to RFC 2045 defining MIME.

Organization:
Not defined in the standard RFC 5322 for email, it is defined in informational RFC 7681 for email, and also in standard RFC 5536 for news (usenet). In any case it is an unstructured header, thus any syntax is Ok.

Message-ID:
Correct according to RFC 5322.

X-FUDforum:, X-Provags-ID:, X-Spam-Flag:, X-UI-Out-Filterresults:
Non standard, hence with no specific syntax requirement.
However I checked the total length of X-UI-Out-Filterresults:. Indeed, even though all the lines lengths are less or equal to 76, there may exist bugged email servers which want the total length of the header (summing all individual lines) to be less than 998 characters. But no worry, the total length is really less than 998.

Regards,
Olivier Miakinen

[Updated on: Tue, 20 July 2021 13:34]

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[Message index]

		Invalid email headers By: JeanAbouSamra on Fri, 16 July 2021 09:11
		Re: Invalid email headers By: naudefj on Sat, 17 July 2021 15:32
		Re: Invalid email headers By: omiak on Sun, 18 July 2021 16:37
		Re: Invalid email headers By: omiak on Mon, 19 July 2021 11:59
		Re: Invalid email headers By: naudefj on Mon, 19 July 2021 20:09
		Re: Invalid email headers By: naudefj on Mon, 19 July 2021 21:10
		Re: Invalid email headers By: JeanAbouSamra on Tue, 20 July 2021 07:08
		Re: Invalid email headers By: JeanAbouSamra on Tue, 20 July 2021 07:11
		Re: Invalid email headers By: omiak on Tue, 20 July 2021 13:33
		Re: Invalid email headers By: omiak on Tue, 20 July 2021 14:26
		Re: Invalid email headers By: naudefj on Tue, 20 July 2021 20:45

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