Forum Discussion
451 4.3.111 Temporary server error. Please try again later MRH1
Hello everybody, we have been using Switf Mailer for a while conected to a mailbox on O365 but since yesterday we are receiving the following error. Expected response code 250 but got code "45...
We are also experiencing this same issue not frequently but when we do send emails in batch of size 25 from our application.
We are also trying to find the root cause of this issue. Please let us know.
