Forum Discussion

Brass Contributor

Sep 16, 2019

365 ATP scanning time

I know the time it takes to scan will vary but does it matter if the user keeps the email open that contains the attachment that's being scanned vs closing the email and checking back in 5 minutes or...

admin

office 365

PaulaSillars

Iron Contributor

Sep 17, 2019

PS_83

I find most of the time 2-5 minutes and the attachment is available.

I ended up turning off the setting that delivered the email without the attachment due to complaints from users they couldn't open it. It seemed like a good idea when I set it up but the users got frustrated.

Now the email gets delivered once the attachment has been scanned and the only time they notice the delay is with emails from the copier which no longer arrive instantly.

For your second question, try a mail flow rule which sets the message header to X-MS-Exchange-Organization-SkipSafeAttachmentProcessing and the value to 1 and set it to apply under specific conditions such as sender domain.

PS_83

Brass Contributor

Sep 17, 2019

Yea that sounds like a good idea. I had someone complain that an attachment took 43 minutes to open yesterday which is a valid complaint. If that continues I'll turn off dynamic delivery as well.

PaulaSillars
Iron Contributor
Sep 17, 2019
PS_83 I have seen that happen once and it seemed to come right on its own after around an hour. It was shortly after we deployed ATP and I was still working through the configuration process. I turned off Dynamic Delivery and no more user complaints.