Forum Discussion
Hybrid - traffic from on prem to EXO - 550 error, banned IP
Newly created Hybrid, a single mailbox migrated for testing. Mail flow from EXO to on prem works fine, but on prem to EXO traffic results in:
VE1EUR02FT012.mail.protection.outlook.com #<VE1EUR02FT012.mail.protection.outlook.com #5.7.606 smtp;550 5.7.606 Access denied, banned sending IP
The IP in question has never been used for email traffic before today.
Thoughts and suggestions please?
VE1EUR02FT012.mail.protection.outlook.com #<VE1EUR02FT012.mail.protection.outlook.com #5.7.606 smtp;550 5.7.606 Access denied, banned sending IP
The IP in question has never been used for email traffic before today.
Thoughts and suggestions please?
4 Replies
Rob,
the error message is just "banned IP"?
Did you check, if the IP is black listed for any reason? http://mxtoolbox.com/blacklists.aspx (or any other service to check black listed IPs)?
Cheers,
Thomas
- Checked the IP for blacklisting already, it isn't on any of the usual suspects.
The error says just that, banned ip, yes.
We've requested the IP be removed, so will do some more testing today.- Would be intersting, if you will get some more details about this issue. But I doubt, you will.
