Setting Up External SMTP Email on WordPress

Hi @analiaserafiniv,

Thanks for reaching out! Please kindly know that the WP Mail SMTP plugin just bridges a connection between your WordPress site and your mailer service. This connection ensures that you are sending emails using an authenticated email account or domain, thereby increasing the chances of your emails reaching your recipient’s inbox.

Once you configure a mailer correctly, all of your website emails sent with the WordPress default wp_mail() function will be routed through your WP Mail SMTP configured mailer.

If you already have an email platform (such as your web hosting provider’s email, Google Workspace, or Microsoft 365) configured on your preferred domain “novartis,” you can use their SMTP settings to configure the WP Mail SMTP plugin using the Other SMTP mailer option. For detailed instructions, please refer to:?https://wpmailsmtp.com/docs/how-to-set-up-the-other-smtp-mailer-in-wp-mail-smtp/.

This means, you can configure the temporary domain as well using the novartis email platform and the domain change won’t affect.

Additionally, you don’t need an IP address to configure the WP Mail SMTP plugin, as your email provider will assign an IP address to your email server. You can request more information, such as SMTP credentials or other necessary details, from them.

I hope this helps. Thanks!

Hi! I followed the tutorial you recommended. I downloaded the plugin and entered the configuration details as outlined (e.g., “From Email,” “From Name,” etc.). However, I’m getting this error (sharing just part of it since it’s very long):

Here’s the beginning:

Versions:
WordPress: 6.7
WordPress MS: No
PHP: 8.1.30
WP Mail SMTP: 4.2.0

Params:
Mailer: smtp
Constants: No
ErrorInfo: SMTP Error: data not accepted. SMTP server error: DATA END command failed
Detail: ip address is not allowed
SMTP code: 550 Additional SMTP info: 5.2.0
Host: smtp-us.ser.proofpoint.com
Port: 587
SMTPSecure: tls
SMTPAutoTLS: bool(true)
SMTPAuth: bool(true)

And here are the last lines:

2024-11-20 17:42:08 SERVER -> CLIENT: 550 5.2.0 ip address is not allowed
2024-11-20 17:42:08 SMTP ERROR: DATA END command failed: 550 5.2.0 ip address is not allowed
SMTP Error: data not accepted.

Could you help me understand what might be causing this issue? Thank you!

Hi @analiaserafiniv,

Thanks for the additional details! ?It appears that your SMTP connection is being blocked by the server or email provider.

Please get in touch with your hosting/email provider support with the full error log and they should be able to assist you further.

In the meantime, you may try configuring an alternative mailer on your site.

I hope this helps. Thanks!

Hello! Okay, I have another question. What configuration should the hosting or email provider set up to make it work? I only entered the details in the “WP Mail SMTP” plugin form. They just provided me with those details.

Hi @analiaserafiniv,

Thanks for getting in touch! Some hosting/email providers block outside connections due to security reasons. Once you share the full error log with your hosting/email provider, they should be able to make the necessary changes on their end to whitelist your SMTP connection.

After that, you should be able to send emails using your authenticated email address from your WordPress site.

I hope this helps. Thanks!