Forum Discussion
Not receiving emails from O365/Outlook.com companies with Barracuda email security
Hello Brian,
We are having the same exact issue to the "T". We have been working this one for the past three weeks with Microsoft, SonicWall and Barracuda. We have pretty much gone through the same steps as you have to troubleshoot with no success. Have you found a resolution.
Thanks.
Averell
Have just re-read OP; had previously missed the fact that the Sonicwall was more than just a simple FW. Is it one of the ones with a tarpitting function (in amongst the Directory Harvest settings, on one set of documentation I found) and if so then is this feature turned on?
Observing the recent post, a clear distinction needs to be noted between senders using Barracuda cloud and Barracuda on-premises appliances. The latter do have a certain notoriety for both sending and receiving issues if not properly maintained. The former send from a large pool of IP addresses so an unrelated Barracuda customer may sully a particular IP for an unfortunate sender.
