Reject large emails

[Nikos Gatsis]

Joseph thank you for your answer.
We use sendmail. Do you know how to set up sendmail.mc to reject those 
emails?
Thank you

Joseph Brennan wrote:
> --On Tuesday, February 12, 2008 10:58 +0200 Nikos Gatsis <ngatsis at qbit.gr> 
> wrote:
>
>   
>> Hello list.
>> Is it possible with cyrus to reject emails with large attachments and
>> inform the sender for the rejection?
>>     
>
>
> As stated, normally done at the MTA level.  But note also, normally
> done by total message size, not attachment size.  If you have to
> analyze mime parts and measure the size of each one, half the battle
> is lost already, that is the sender already transmitted the large
> message and you had to store it in a spool file and parse it.
>
> At MTA level, if you and the sender both use ESMTP, your MTA can state
> its maximum message size in the ehlo response, and the sender's MTA can
> see that and not even send the message.  That is the best outcome.  If
> the sender does not use ESMTP, it wastes time sending the entire
> message, but you can still reject quickly.
>
> The sender's MTA will create the bounce notice, or do whatever else
> it does when mail can't be delivered.
>
> The Cyrus system should not send a bounce.  It should only accept or
> reject, and the sending MTA should handle notifying the sender.
>
> Joseph Brennan
> Columbia University Information Technology
>
>
> ----
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>
>   

-- 
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*Γατσής Νίκος - Gatsis Nikos*
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email: ngatsis at qbit.gr
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