Today I noticed that mail for dozens of domains that are hosted on microsoft were sitting in the que with 451 4.7.500 Server busy. In checking the mx records they all were company name then mail.protection.outlook.com. Then they would just go
out after awhile. Sending emails to any other companies not hosted with microsoft, zero issues. This is 8/3/18, was there corporate issues this day or is it on my end. Never seen this before till today.
↧