lists-qmail at maexotic
Jun 11, 2009, 9:44 PM
Post #1 of 3
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Facebook and quoted-printable
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Hi,
just in case someone else has problems with mails from facebook.com,
this might save some time investigating the issue:
Facebook is sending their mails as
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain; charset="UTF-8"
Despite the fact that RFC2045 clearly states:
(Soft Line Breaks) The Quoted-Printable encoding REQUIRES that
encoded lines be no more than 76 characters long. If longer
lines are to be encoded with the Quoted-Printable encoding,
"soft" line breaks must be used. An equal sign as the last
character on a encoded line indicates such a non-significant
("soft") line break in the encoded text.
they are sending lines with some 100 chars wide.
This leads to some (correct) mail clients truncating lines and displaying
garbled messages/text.
Also - as spammers make the same mistake rather often - I've seen line
length checks for Quoted-Printable implemented in antispam software.
I have notified Facebook, but don't expect something to happen. This was
the answer:
I apologize for this inconvenience. Unfortunately, this is not an error
on our end. You will need to speak with your email provider in order to
resolve this issue.
\Maex
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