Limit the number of cc/bcc/to recipients?

[keithop]

Hi,

Maybe I've missed it in the GUI but is there a way to limit the amount of recipients to prevent spammers signing up and using the server to spam through?

Thanks,
Keith

[Klug]

Hello.

I don't get it : you let anyone create an account on your Zimbra setup?

[keithop]

Hello,

We host zimbra, so it's not the same situation as just running a single server for a company

[Klug]

Oh, I see...

I don't think there's something in the WebUI.
Can't you setup postfix to avoid hamering from one email address (problem is the same from "direct" SMTP connections, isn't it?).

[keithop]

Hi,

I'm more of an exim guy than a postfix (prior to zimbra at least), so I'm hoping someone has a good suggestion ;-)

On our exchange servers, we can very clearly set such limits, so I'm rather hoping there's a similar solution somewhere for zimbra

Cheers,
keith

[rdunn]

I am no expert but you may have a look at the following. 1000 is the default setting for each.

su - zimbra
postconf -e 'smtpd_recipient_limit = 1000'
and
postconf -e 'smtpd_recipient_overshoot_limit = 1000'