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From:   Martin Steigerwald <martin@lichtvoll.de>
To:     Rogier Wolff <R.E.Wolff@bitwizard.nl>
Cc:     Jeff Layton <jlayton@redhat.com>,
        =?utf-8?B?54Sm5pmT5Yas?= <milestonejxd@gmail.com>,
        linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: POSIX violation by writeback error
Date:   Wed, 05 Sep 2018 09:39:58 +0200
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Rogier Wolff - 05.09.18, 09:08:
> So when a mail queuer puts mail the mailq files and the mail processor
> can get them out of there intact, nobody is going to notice.  (I know
> mail queuers should call fsync and report errors when that fails, but
> there are bound to be applications where calling fsync is not
> appropriate (*))

AFAIK at least Postfix MDA only reports mail as being accepted over SMTP 
once fsync() on the mail file completed successfully. And I?d expect 
every sensible MDA to do this. I don?t know how Dovecot MDA which I 
currently use for sieve support does this tough.

-- 
Martin