Meeting Requests

Unanswered Question
Aug 6th, 2009
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Hi All,

I have a C30 appliance and need to write a message filter to block external Meeting Request type emails for two specific users in my organization -- preferably with an action to drop & reply back with a canned response. What's the easiest way to achieve this? Is there anything specific to meeting request type emails in SMTP across all email clients? I don't want a different rule for every email client out there if possible.

Any thoughts/suggestions are greatly appreciated.


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Andrew Wurster Thu, 08/06/2009 - 23:35
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i think you can do a check for attachments' extension type '.ics'. that is the only kind of extension i've ever seen. you can also try mime type of 'text/calendar' since it seems to be the same in all my meetings:

Content-class: urn:content-classes:calendarmessage
Content-Type: text/calendar;
Content-Transfer-Encoding: 8bit

your filter logic would be:
if recipients are person1 or person 2 AND mime type is text/calendar
then notify AND drop

let me know if you need help on the syntax or testing.

take care!



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