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Please guide me to the solution to block all senders except the ones defined.
Important: this rule should be valid to specific Kerio users only.

Thanks for the great product - we use KerioConnext since years...
Jonas Rodrigues (Kerio)

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Hi George,

Could you please give us a bit more details regarding what is your goal here, so we can get a better

understanding of your need?

All the best,

Kerio Technical Support
Log Support Incidents here: http://www.kerio.com/support
Also, please use our KB: http://kb.kerio.com

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The intention behind this is to block all senders, except the ones who signed a service contract.
So actually a closed group of users. valid for one single Kerio user.
The external users should not be involved in this registration or whatever.

Thanks for your assistance.
Charles B

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I couldn't think of any way to do that using the custom message rules--not that it can't be done, just that I could not figure it out.

I did implement something like that, using the mailing lists feature. In your case I'd do it like so:

  • Create a mailing list named something meaningful, for your example I would probably name the list "Service", so the list mailing address would be Service<_at_>mycorp.com.
  • Add your closed list of senders to the list members.
  • Make your single user, who you want to get these emails, a moderator.
  • Set the posting policy so that members can post a message but pick "Moderator must approve", everyone else (non members and moderator) is denied.
  • Subscription to the list by email can be be denied (if you want to manually add names to the closed list) or Moderator must approve (if you want your moderator to be able to allow the users to add their names by sending an email to service-subscribe).

The way this works is every email sent to this list by members gets forwarded to the Moderator for approval. Since only members emails (your closed list) will be forwarded to the moderator (your single Kerio user) it accomplishes your goal.

It is kind of a kludge, and it requires that the moderator NEVER approves the messages, just reads and deals with them, but does approve the requests to subscribe. If your moderator can't be trusted to not accidentally approve the messages, then you could make the moderator an alias that forwards to your actual single Kerio user's email account, and you (as the admin) will just have to manually add new service contract purchasers to the list.

(edited for spelling)

[Updated on: Tue, 22 October 2013 00:29]

Mid 2015: Quit Kerio and moved to Exchange 2013 and Meraki.
Kerio Control 8.4.0--Used since it was WinRoute, many years ago
Kerio Connect 8.4.0 on Ubuntu. Bought Connect just in time for the switch to NO SUPPORT(aka pay for support). Not. Happy.
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