Forum Discussion
How dynamic delivery works and why you sometimes have to wait for attachments
Microsoft introduced the Safe Attachments feature as part of its Advanced Threat Protection (ATP) offering in 2015. ATP is an option for Exchange Online Protection (EOP). It is included in the Office 365 E5 plan and can be licensed as an add-on for $2/user per month for other Office 365 plans. Now Safe Attachments can handle dynamic delivery and the improvement is noticeable.
15 Replies
TonyRedmond Thanks for the info share.
I was a bit curious about something.
Why would I need to enable ATP safe attachment if I already have a malware filter in place?
Because Malware filters don't always catch new malware.
Thanks TonyRedmond. I guess that makes sense.
- I have been using this for some weeks and yeap, since this kind of delay between when you receive the e-mail and when you are finally able to open the attachments that are included...is there any Official information about analysis time required for e-mail attachments?
The answer is "it depends". Clearly, the volume of inbound traffic containing attachments that might need to be checked and the number of user accounts configured for this level of protection are contributory factors that might slow delivery. My practical assessment is that the delay ranges from a minute to three or four, depending on the time of day. Most of the time, it is around two minutes.
I see internal documents even with the transport rule in place taking 40 mins for a 10 page document. Little hard to tell a users to wait 40 min to open the document. Sending the users to web interface to have to relogin every time is cumbersome and then there is no review just blank screen. Microsoft has put little if any development into this product, to make it more administratively friendly, their answer is go outside the application to control product thru transport rules.
