IMAPS and POP3S filtering

yes you can. What mode are you currently running now server/gw/transparent? Wth SMTP-Auth you could provide a means for your clients to relay thru the fortimail to any destinations. Also, just for clarifty POPs/IMAPs are client delivery aka MDA and not MTA. Even tho your clients ( outlook ) are receiving mail via gmail, they have a function of using a MTA for delivery.

Hey, I still havent purchased the product, just checking if it could provide me of what i need. as i see it, i can install FortiMail as a gateway proxy (server mode), my clients who uses outlook will config their gmail mail boxes in outlook in Imap secure or pop3 secure for receiving emails, encrypted mode only, and the fortimail will proxy their secure connection to gmail and will drop attachment and filter message size including scan the mail for viruses? thanks Johnny

If Outlook is configured with the GMail (IMAPs/POP3s) then it will be a direct connection to the GMail servers on 993/995 and 465 for outgoing, the Fortigate could be configured to do SSL inspection in that case. I don' t see a good fit for the Fortimail here.

So are you trying to drop attachments inbound or outbound? This is a very strict requirement and I wonder now on how easily that could be bypass ( encryption maybe ) :)

Hey, I will try to explain my self again. I have users with normal PC' s in my Lan, they have outlook installed and their gmail mailboxes configured in that. All setup in Imaps or pop3s (SSL only). I don' t have an internal mail server or a domain or MTA. Just users in the lan and a firewall. What I want is to intercept the SSL connection to gmail and filter incoming mails, drop certain attachments and filter spam. I want to filter it only when they receive emails to their gmail (configured in outlook). I don' t care about the mails they send. Is this kind of requirement can be done using fortimail? And how? I now have a fortimail VM in my lab for test, not sure how to set it up I know it can be done on webmails ( https ) not sure why not on pop3s and I maps....

If you have google as you corporate email, you might have something even better & right at your finger tips :) https://support.google.com/a/answer/2364580?hl=en A fortimail appliance, would not be the solution that you want , nor with achieving what your looking for btw.