Email Sending Error

[Loneweaver]

Hello

We recently commissioned a WordPress website hosted in cPanel but emails are failing. To give perspective of our infrastructure

1. We have our website webserver in our DMZ running WHM and cPanel.
2. Our company has a domain ourcompany.com that's controlled by internal domain controllers.
3. We use exchange server for our enterprise emails
4. Our webserver's FQDN is webserver01.ourcompany.com and the domain setup in cPanel is ourcompany.com

5. Now, our WP website has a form where users input their email addresses and they should receive an email notification after submitting the form, however this is not the case and I'm seeing this message under Track Delivery in cPanel.

ECDHE-RSA-AES256-GCM-SHA384:256 CV=yes: SMTP error from remote mail server after RCPT TO:<[email protected]>: 550 Sender (webserver01.ourcompany.com) has no A, AAAA, or MX DNS records.

The From Address is [email protected]

What would be the best approach to get this working

 

[rpvw]

The easiest way is to install one of the WP Authenticated SMTP plugins, and configure it to send via an authenticated SMTP session, using an existing email account on your server.

 

[Loneweaver]

The easiest way is to install one of the WP Authenticated SMTP plugins, and configure it to send via an authenticated SMTP session, using an existing email account on your server.

The challenge is our emails are managed by exchange and we do not create any email accounts on cPanel

 

[rpvw]

I would suggest you should:

1. Set up an account in your users cPanel to handle mails sent from the WP installation (this can be limited to outgoing mails only)
   
2. Install an SMTP authenticated mail plugin to your WP, and configure it to use the account you have set up.
   
3. Configure a connector on your exchange server to accept mails from the account that you set up previously.

In theory, you should be able to set up an exchange connector to receive emails from your [email protected] account, but it will almost certainly impact the onward delivery of mails, and their acceptance by the destination server.

For details on how to set up an Exchange connector, please visit their own dedicated forums and documentation.

 

[cPanelMichael]

Hello,

The information in the previous post is likely the best approach. Let us know if you have any additional questions.

Thank you.