Mail server they don't work

(Osclass 3.8.1, th bender)

  1. Google settings are ok (this service is also used in pop peeper) but they don’t work.

  2. Custom settings were made by my site hosting, but they also don’t work.

Can anyone help?

Setting Customs Email
Host : mail.namedomain.com
Server port : you cek server port you server
Username : Cs@namedomain.com ( you Customs email you sever )
Pass : you password email you server
Encrypt : is blank

Smtp : no check list, is blank

Good luck

Thanks for your answer. After all, it was a problem for the hosting provider. I changed provider and now everything is fine.