Forum Discussion
Can't send any emails from Exchange online to outlook.com
is it Microsoft's IPs or are they blocking my IP address?
HotCakeX OK yes so you are global admin. I assume no one has created any send connectors in Exchange? Login to https://outlook.office.com/ecp, click on Mail flow, connectors and just see if you have anything in there. If not, then email is just going straight out from Exchange Online, so yes it would seem that outlook.com is blocking one of these IP addresses (possibly because another customer has been abusing the service).
I would raise a ticket with O365 support for this.
CloudHal wrote:HotCakeX OK yes so you are global admin. I assume no one has created any send connectors in Exchange? Login to https://outlook.office.com/ecp, click on Mail flow, connectors and just see if you have anything in there. If not, then email is just going straight out from Exchange Online, so yes it would seem that outlook.com is blocking one of these IP addresses (possibly because another customer has been abusing the service).
I would raise a ticket with O365 support for this.
Thank you, so here is what i got
about IP addresses, you mean that even if I use VPN or connect to Outlook client from a different IP address in a different country, i won't still be able to send emails because the problem is from Microsoft's IP address? is there any way to find that particular IP address?
