#26572: AdminEmailHandler fails to honor subject length limit
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Reporter: pdewacht | Owner: nobody
Type: Bug | Status: new
Component: Core (Mail) | Version: 1.9
Severity: Normal | Resolution:
Keywords: | Triage Stage: Accepted
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 1
Easy pickings: 0 | UI/UX: 0
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Changes (by claudep):
* needs_better_patch: 0 => 1
Comment:
After some more consideration, I discovered that headers are not limited
in total length by the spec, only individual lines are. Read
https://tools.ietf.org/html/rfc5322#section-2.1.3: `An unfolded header
field has no length restriction and therefore may be indeterminately
long.`.
Then Python is automatically folding headers when sending messages, by
default to 78 characters. So now I think that the subject line truncation
is simply wrong. Of course, it's not nice to receive very long headers,
but we have no reason to truncate subject or any other header.
We might even question the refusal to accept newlines in headers, but that
would be the subject of a separate ticket.
--
Ticket URL: <https://code.djangoproject.com/ticket/26572#comment:3>
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