hMailServer connection to imap server failed

To Fix the error Change Auto-ban setting and restart hMailserver

hmailserver

hMail IMAP server failed

Try Disabling Firewall Click Start, Run and type:

Netsh firewall set opmode disable

1	Netsh firewall set opmode disable

Netsh firewall set opmode enable

1	Netsh firewall set opmode enable

Go to hMail Administrator > IP ranges 
And remove all Banned IPs

1 2	Go to hMail Administrator > IP ranges And remove all Banned IPs