Hello,

I am sorry as I didn't understand you and you have attached the wrong image.

Thank you

oh sorry, I attached wrong image.

here is the right one

Hello,

405 are method no allowed error. System use you mail settings to send emails. If you can send other emails, there shouldn't be any issue with verification email too.

Thank you

email from my webmail is OK,

and the setting on System is default as I show in this screenshot.

Do you server support default php mail? You can try SMTP and check again.

I have just got the reply from my hosting provider, he said it is OK. he and I tested sending the email from his hosting to Gmail and Yahoo and they both work fine.

I can't understand. Do you get any failure email response in from email? Is the default email in system setting correct? Can you try with SMTP to test?

If system can send the email to no-gmail that means it should be sending to gmail too unless your default email that you can change in the system settings is wrong or failing due to some spf, dkim or dmarc policies.

basically, I read the manual but I did not see the setup guide for this email registration.
I just only see the email settings, so I have no clue how to configure with your system and my email.

have you got any straight forward guide?

I test with my yahoo mail and I got this error fall back (see my screenshot)

Hello,

It looks like something with your email and provider issue.

I suggest you check the email with mailtrap.io They provide free account with SMTP to test email.

System can only initiate the send request and what's happen after is out of control of the script.

Thank you