Virus scan + removal on a mdbox mail storage

[Christoph Haas]

Hello David,

----- Nachricht von David Pottage via dovecot <dovecot at dovecot.org> ---------
      Datum: Thu, 21 Feb 2019 13:58:14 +0000
        Von: David Pottage via dovecot <dovecot at dovecot.org>
Antwort an: David Pottage <david at chrestomanci.org>
    Betreff: Re: Virus scan + removal on a mdbox mail storage
         An: dovecot at dovecot.org


[...]
>> NO! My mail storage is mdbox. And at the moment I have no intention to
>> convert it to Maildir!
> Could I ask why? maildir is a better storage format is almost every respect.

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.

Another reason - you can beat me for this - it's more freaky ;-) - no,  
just kidding ...
There was some years ago an interesting lecture from Peer Heinlein  
about the mdbox mail storage, I afterwards bought his "Dovecot Buch"  
of OpenSource Press and sticked to mdbox.

But I'll test backup of my mail storage converted to Maildir (which  
can easily be done thanks dsync)
- If there are no significant time difference, I might then change to Maildir.

[...]
> The thing is that users will usually open emails shortly after they  
> arrive. Most emails are not opened again later, especially the  
> attachments.

you're right about this. And if a user has suspicions abaout a  
possibly infected attachment, one can delete the whole email without  
hassle.

[...]
> For my day job I work for Sophos (A cyber security vendor), so all  
> this is familiar to me. If you have the budget for a commercial  
> product, then Sophos PureMessage does have postfix support.  
> Technical details here:
>
> https://docs.sophos.com/msg/pmx/help/en-us/msg/pmx/tasks/GSGConfigExtPostfixConfig.html
>
> Other AV vendors probably have similar support, but I don't know any details.
>
> -- 
> David Pottage

I know about Sophos. Since my infrastructure is only for me and my  
family, I'll use the SAV9-free package ... and will try to integrate  
this with Postfix or AmaVisd.

----- Ende der Nachricht von David Pottage via dovecot  
<dovecot at dovecot.org> -----

Christoph.

-- 
Christoph Haas
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