Required Network Administration,Application Server,Email,Maintenance freelancer for Fix email errors job

I recently migrated my account to a VPS.
After a few reconfigurations, the email is working again, but with a few glitches.
I use Thunderbird on a Mac.
The email was fine before the migration.

1. My new server is blacklisted by microsoft, with error messages like this:
A message that you sent could not be delivered to one or more of its recipients. This is a permanent error.
I will share whole screen record and all details with shortlisted cadndidates.
This job requires you to restore functionality of both outgoing servers.
Access to my computer will be available via TeamViewer or AnyDesk, at a mutually convenient time.

NO placemarker bids.
Quote your price for the job - NOT your hourly rate.
NO phone calls or emails; Toogit applications only

Skills & Expertise Required

Network Administration Application Server Email Maintenance