I'm getting the following error when sending any email:
host se002.arandomserver.com [188.8.131.52] SMTP error from remote mail server after end of data: 550 Messages should have one or no Date headers, not 2.
So I decided to disconnect my account which was set as "Send As", however I can not add it back as a send as (Outlook removed this option?). Anyways, I setup the account again as a POP account.
However, I'm still getting the error. I talked to my host and they said its an issue with outlook.com.
I should add that the email configuration works with Gmail, Thunderbird and other third-party mail clients. It's just outlook.com that's giving me a hard time.
Anyone have a fix for this one?