Mail apps bug (Saunalahti account)
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Precondinations:
Operator: Elisa (Finland) with mobile data connection
Email account of Saunalahti (IMAP)
Incoming server address: pop.saunalahti.fi
Secure connection: Not in use
Port: 143

Outgoing server address: posti.saunalahti.fi
Secure connection: Not in use
Port: 25

Steps:
1) Choose New email
2) Write a valid receiver
3) Send the message

Problem:
The email cannot be sent. Error message "Problem with sync"