Relay mail through O365/google

[AlanD]

Anyone using Google or Office 365 to relay mail through to an on site Exchange server?

 

(Set up a connector between Exchange and Cloud and point MX record at the cloud - seems to be on-line instructions detailing how to do this)

 

Does it filter spam when its operating like that? (I'm told it does...but don't always believe what I am told) And is the spam filtering any good? Can you write rules to - say stop emails with attachments with executables? Or selectively not stop emails with specific attachments types from specified senders? Or can you divert emails to a quarantine area?

 

Just in case you are wondering - we are thing about not paying for an antispam product on our exchange box - but not yet ready to migrate emails to the cloud completely (partly because we would still have to run some kind of on-site relay - which may as well be the exchange box...and we can do proper backups with our on-site exchange...)

[sister_annex]

I have recently set this up with Office 365 - easiest thing to do is run the hybrid config wizard - that does most of the linking for you. When I am back in work tomorrow I will check my notes on how I did it and let you know.

 

The EOP spam service isn't as comprehensive as a paid for solution (we ran barracuda here for the last 12 months) but it does seem to be catching the majority of bad mail and from what I can tell there are some customisation options - most using transport and mail flow rules - which all work as expected.