MAIL

I can't get mail to work with email (fairpoint.net)

I have added the account correctly, as per fairpoint instructions with the correct imap/pop settings,

correct incoming/outgoing host name and username

correct passwords. everything. Server port was the correct number,

SSL off as per instruction. .

And here's the thing. Emails are coming in but emails cannot be sent out. Some connection error....

Really need help figuring out how to fix it.

I am great at following instructions, so if someone could post what to do from here on out, to \fix this error. would be greatly appreciated.

Note this is on an iphone x with more current software update installed.

3/18/2018

Also note I am a wireless retailer, (not customer care) (not repair or tech center) helping a customer set their phone up, so if you have no further suggestions as to how to fix this error, do you have an explanation I could give to Mr. Customer as to why he will not be able to use the pre-installed "mail" app to access his fairpoint.net email?

Thanks in advance.