Phpmailer not sending emails,and giving error

[Admin]

Interesting, this error message looks very similar to the one from this topic.

Yandex SMTP Email Sending Issues

I have been trying to use smtp email from Yandex, it is not working on Infinityfree server. It is working in another server and also it is working on my desktop computer. Not just Yandex I have tried Gmail as well same error message. I have done a lot of debugging but still cannot fix it. Can you let me know whether it is because some thing in blocked on the server. I get the message “Failed to connect to server: (0) SMTP connect() failed. https:[slash][slash]github[dot]com[slash]PHPMailer[sla…

This looks like it could be some kind of networking issue on our end. I’m going to poke around and see what I can find.

EDIT: I just tested this on your account and the message seems to send successfully. Do you still see any errors?