What is the best mail to use to send emails via PHPMailer via smtp?

Question

Email

Hello. I used gmail.com, but it is tied to a specific device. And if you bring the project to work on a flash drive, for example, then mail will not go through gmail. This is not very convenient.
I tried yandex.ru. An error is thrown:
SMTP Error: data not accepted
I googled, they write that there are always some problems with Yandex. It is better to use another mail.
Good. And which one is best to use?

Answer 1

gmail