notmuch ignoring alot of emails
te100 at runbox.com
Sat Mar 30 16:53:27 PDT 2019
>> When I run notmuch I get a bunch (hundreds) of emails that are
>> Note: Ignoring non-mail file: ...
>> The files are valid maildir files but have a paragraph somewhere in
>> body where someone has written "From ".
> And do they also have have a line starting with "From " as the first
> line? This makes them mbox files. The second "From " makes them mbox
> files with multiple messages. Notmuch thinks your MDA (the thing that
> made those files) is misconfigured, assuming my guess about the format
> is correct.
Every message file begins with “From “. This is true of all messages
downloaded by both offlineimap (with type = Maildir) and mbsync.
neomutt has no issues dealing with these files as maildir and mu has no
issues indexing them either. I’m assuming that stating with “From
“ is part of the maildir spec.
The problem occurs specifically with notmuch. If someone sends a message
with a line that begins with “From “ in the *body* then it confuses
mu can correctly index these messages but my mu is linked against
libgmime-2.6, my notmuch (0.28.3) is linked against libgmime-3.0.
>> Is there a fix to force the recognition of maildir files in this
>> case? I
>> thought this was a solved problem with gmime since 2.6.7.
> There is not currently a way to do that. It's not a GMime problem,
> a design choice of notmuch to avoid parsing multiple message
> mbox's. That was originally added as a safety feature, and I think it
> should probably stay the default. If someone wants work on adding a
> configuration switch I can point them in the right direction.
This is a poor design decision. It means anyone on the internet can
break your mail setup simply by sending a message with a line starting
with “From “.
(and using usual quoted-printable Content-Transfer-Encoding).
Try it. Send yourself a message with the line “From bad parsing comes
chaos” and see if your notmuch can find it. My version can’t.
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