Email error in WHMCS.

[F7N]

Hello,

 

 

I am currently using WHMCS v7 and as of this afternoon troubleshoot I email problems. However when I set up a custom SMTP remote provider was working fine for a couple of months. But it says today limit reached and that is something that is not correct. I was able to sent 9k of emails per month and I reach always around 7k of emails per month and each new month I can sent again 9k of mails to my clients but not today. So I changed my SMTP provider that provides 100k emails per month and each email I tried to sent like a ticket or invoice I getting this: ->Email Sending Failed - SMTP Error: data not accepted<- How can I fix this error. Is it something that I can fix in my cPanel or is it purely a server issue where a provider needs to take a look to it? I hope that somebody can help me.

 

Regards,

Jordy.

Edited September 4, 2017 by WHMCS Andrew
Removed inadvertent advert

[WHMCS Andrew]

The error you see is coming from your SMTP server not liking something that is being sent to it.

 

You can debug the connection to the SMTP server by adding the below line to your configuration.php file and attempt to send an email from the Client Profile or Mass Mailer. The response should be something you can take a look at to see.

 

The line is:

 

$smtp_debug = true;

 

 

 

Alternatively, you could ask your new SMTP provider what the issue with the mail you are sending is.

 

It is possible that the "FROM" email address of the mail being sent needs to be registered with your new provider for example.