Prestashop SMTP Connection could not be established with host

Question

I am having a problem configuring Prestashop SMTP.

I am trying to use gmail client.

1. SMTP server: smtp.gmail.com
2. Username: [email protected]
3. Password: password_of_gmail
4. SSL
5. 465

Error: Connection could not be established with host smtp.gmail.com [Cannot assign requested address #99]

Gmail has turn off 2 step vertification, POP3 enabled, and Allow less secure apps enabled too.

Answer 1

Maybe your server doesn't allow external SMTP access.

For example 1and1 shared hosting doesn't allow that https://github.com/PHPMailer/PHPMailer/issues/816