Go to your phone’s SETTINGS, then scroll down and tap on MAIL.
Tap on ACCOUNTS and select your email account.
Tap on that ACCOUNT under the IMAP or POP section.
Under the Incoming Mail Server section, change the Host Name field to the following:
For POP3, change to pop.fusemail.net port 995 with SSL
For IMAP, change to imap.fusemail.net port 993 with SSL
Then tap on SMTP under Outgoing Mail Server and then on the PRIMARY SERVER field.
Change the Outgoing Host Name to smtp.fusemail.net port 587 with TLS or port 465 with SSL, and tap "DONE" at the top right corner of your screen.