Problem in vbulletin mail configuration

[habili]

Hello friends, i buy a mail hosting service from zoho.com for my forum.
My problem is when i set email settings from options menu and email setting in admincp ( smtp host, user,password and protocol) , cant send any email from vbulletin.

Its about some days that im working on it with zoho support team with no result. ofcourse my email account registeron other mail clients like outlook and thunderbird but it doesn’t work on vbulletin.
Whats the problem and how can i solve it?!!

[Wayne Luke]

I have no idea how to solve your issue with the information currently provided. We need some basic information to solve the issue. None has been provided.

https://forum.vbulletin.com/forum/vb...obtain-support

If I were to guess, I would say that the encryption selected is the wrong protocol, it isn't the proper version, or the port used in incorrect.

[habili]

With SSL :
smtp host : smtp.zoho.com
smtp port : 465
smtp username : [email protected]
smtp password : mypassword
smtp secure connection : SSL


With TLS :
smtp host : smtp.zoho.com
smtp port : 587
smtp username : [email protected]
smtp password : mypassword
smtp secure connection : TLS

I got bellow error :

The mailing function returned an error while trying to send the mail.
The following errors were outputted by PHP when attempting to send mail:

Warning: 553 Unexpected response from SMTP server when ending transmission in .../vb/mail/smtp.php on line 155 

I test in VB5.5.4 and 5.5.6, both with above error. my server information is :

PHP version is 7.2.20
MariaDB : 5 and 10
Language : English

[Wayne Luke]

We don't support MariaDB 5 at all. 10.1 is the minimum supported version.

A 553 error means the email box doesn't exist. “Requested action not taken – Mailbox name invalid”. That is, there’s an incorrect email address into the recipients line. Check all the addresses in the TO, CC and BCC field. There should be an error or a misspelling somewhere.

Do you have a bounce email specified in the Email Options? What email is bouncing?

[habili]

mailbox name is valid. i got above error with any email address. for bouncing email i put email address of my smtp relay.

[habili]

my problem was solved. i configured it on port 587 and TLS.

[Wayne Luke]

I am glad you have resolved it. Could be that the server was blocking the SSL port for some reason.