Virus scan + removal on a mdbox mail storage
stu at spacehopper.org
Tue Feb 26 03:38:21 EET 2019
On 2019-02-22, David Pottage via dovecot <dovecot at dovecot.org> wrote:
> On 2019-02-21 22:14, Christoph Haas via dovecot wrote:
>>>> NO! My mail storage is mdbox. And at the moment I have no intention
>>>> convert it to Maildir!
>>> Could I ask why? maildir is a better storage format is almost every
>> well, I have a mailbox with about 50k emails ..., so one reason seems
>> to me better backup performance with mdbox, since there are much less
>> files to save.
> Assuming that you backup regularly then maildir is much better, because
> new emails show up as new files, while old ones are left unchanged. This
> means that an incremental backup only has to process new emails. With
> mailbox, the file for the entire folder changes every time a new email
> is delivered or the user edits any of them, so the whole mailbox needs
> to be backed up again, resulting in far more I/O and time.
It sounds like perhaps you're confusing mdbox with mbox. mdbox uses
multiple files but not a single file per message. It is fairly sane for
backup handling - depending on how you set things up, you can have it
rotate after a fixed size, fixed time, or combination.
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