notmuch new: emails with BOM are ignored

[Andreas Amann]

Hi,

I recently received some spam mails, which have a utf-16 byte order mark
(BOM) U+FEFF as the first character in one of their "Received:"
lines. When I run "notmuch new" I get the following:

Note: Ignoring non-mail file: /home/user/Mail/new/path_to_email_with_BOM

Could this be a bug in notmuch? Possible emails with BOM are not "legal"
anyhow, but in my opinion it would be better to simply ignore the BOM.

I am using notmuch 0.18.

Andreas



P.S.: 

looking quickly at the code as a non-expert, it seems that the error
message comes from function "add_file" in "notmuch-new.c", because it
gets a status of "NOTMUCH_STATUS_FILE_NOT_EMAIL" from
"notmuch_database_add_message". This latter function is defined in
"lib/database.cc". It returns that status in the case, when
"notmuch_message_file_get_header" does not work (i.e. return NULL or "")
for the headers "from", "subject" or "to".  In the message at hand all
of these headers only come after the BOM, so my guess is that
"notmuch_message_file_get_header" somehow chokes when it hits on the
BOM?