Error message about connecting to server

Connection Failed
This could be caused by Temporary Server Unavailability or Incorrect Settings??

Any ideas Peeps

This happens every time a new email attempts to land in my Em Client Inbox. Very Frustrating. Don’t want to buy Pro Version if this is going to continue to happen

Have the same problem for last 3 weeks. Try VIP for help with little assistance. Just installed Mailbird and it works fine.