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Qmail seems to go offline

DocGerry

New Pleskian
Plesk/Ubuntu VPS with Qmail

Messages come up that clients cannot connect to server but the servers is still there, often after it has successfully connected and retrieved and sent email.

Outlook clients and also eM client can send and receive most of the time, but randomly these clients claim the server is off line (when the server is alive and well). Sometimes emails hang, or still received and sent but still message comes up cannot connect to server. Then emails cannot be received or sent. Restarting outlook can sometimes resolves the problem. So can restarting the server. Waiting a while also resolves it.

What happens to Qmail that seems to stop emails and making clients believe it is off line in such an erratic manner?

Gerry Bulger
 
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