External SMTP: 553 Relaying disallowed as [email protected]

[CheekyFinds]

Hi,

I have Prestashop v8.1.5 installed on AWS LightSail.  I am trying to set up an external SMTP with Zohomail.  When I go to test the configuration, I get the error, "

An error has occurred. Please check your configuration.

Expected response code 250 but got code "553", with message "553 Relaying disallowed as [email protected] "

My SMTP settings are:

Send emails to "Customer Service"

SMTP server: smtp.zoho.com.au

SMTP username:  [email protected]

SMTP password: xxxxxxxxx

Encryption: TLS

Port: 587

 

Send test email to:  [email protected] (Personal email)

 

Searching suggested that the error is due to Store Contacts still saying [email protected].  However, contacts for both Customer Service and Webmaster have been updated to the same domain being used as the smtp username.  I have restarted the whole instance in case the updated email was not been picked up.  However, the error message still says [email protected].  So, where is it picking the From address from?  

Where are the log files on the file system?  I could not find anything in /var/log or the apache2/logs folder that would show any sort of SMTP logging.

Regards,

Vivek

 

[CheekyFinds]

I found the solution.  The problem was with the "Store Contact".  I was updating the Team Contacts; not the Store Contact.  As soon as Store Contact was updated; test started working.