I cannot send email to user, why?

Describe the issue or problem
when i send email with notify, it success.
but when i try email on user page, it failed. why?

here is my config. on config.inc.php

my installation.

Hi @yhangde,

There may be a variety of different reasons behind email not working. I’d encourage you to have a look at our email troubleshooting guide as a first step: https://docs.pkp.sfu.ca/admin-guide/en/email#troubleshooting-email-problems

Best regards,

PKP Team

i have read this doc for many times, but failed solving this issue, that is why i post it here.

plz be aware that, i can send in the notify page successfully, so i think mailing setup is working properly.

the problem is it doesnt work in user page.

plz help

anyone can help me ?

Instead of the smtp.domain address, can you write the your ip address if you know it?

smtp = On
smtp_server =
smtp_port = 587
smtp_auth = tls
smtp_username = mail@yourdomain.org
smtp_password = passs

You can also get information from your server administrator?

I don’t know their IP address.

The question now is why it can be sent successfully in some pages, and in some other pages it cannot be sent successfully?