Forum Discussion
Exchange online, post migration issues
I'm not 100% sure if this is the correct section for this, but given I have no idea what the problem is! I thought I would start here. I do IT work for a small charity, they were running POP email ...
Exchange itself would have nothing to do with it, but most likely what did happen, someone changed the related DNS records for the domain when changing where the e-mail domain routes to. So your website DNS is most likely not correct. Need to find out what the IP should be and make sure it's resolving properly. Ping from local, and when it's working via VPN, see where it's pinging. If it's the same, and it works on VPN, then obviously there is some kind of IP blocking going on on the website or a device in between the site and you that is restricting certain IP's from connecting.
ChrisWebbTech thank you very much for taking the time to answer, it is greatly appreciated.
I wish I could say that your suggestion helped, but I think this was one of those gremlins that has no answer... because when I checked it today it is magically working again. I have not changed anything at all, and it was simply left for 4 or 5 days while I tried to come up with a solution and it is now working.
I can only assume that there was some sort of DNS replication issue?
Either way, I now have happy users again. Thanks again.