Word Press Error leads to Plugin Fail

[dewayne-orender]

I am trying to get our WP email to take but I am getting an error. I am new to this so please try to give as many specifics as possible.

Versions:
WordPress: 6.2
WordPress MS: No
PHP: 8.0.28
WP Mail SMTP: 3.7.0

Params:
Mailer: outlook
Constants: No
App ID/Pass: Yes
Tokens: Yes

Debug:
Email Source: WP Mail SMTP Pro

Mailer: 365 / Outlook

ErrorSendAsDenied: The user account which was used to submit this request does not have the right to send mail on behalf of the specified sending account., Cannot submit message.

When I look at the WP Mail SMTP Pro Plugin this is what I get.
WP Mail SMTP Pro
Settings | Support | Docs | Deactivate

Reconfigures the wp_mail() function to use Gmail/Mailgun/SendGrid/SMTP instead of the default mail() and creates an options page to manage the settings.

Version 3.7.0 | By WPForms | View details

There is a new version of WP Mail SMTP Pro available. View version 3.8.0 details or update now.

I tried to update the plugin and got a Bad Request:
Update Failed: Download failed. Bad Request.
Any suggestions that would get us moving in the right direction.

Thanks in Advance.

[matthew-martin (MartinCCSS)]

Make sure that the email from address matches the account being used to send the email message which seems to me like the most likely issue if there is a mismatch.

Many hosts block outgoing SMTP by default. Who is the hosting provider and have you requested that outgoing SMTP be unblocked?

Use Query Monitor or review the server logs for PHP errors to check for compatibility errors with PHP8. Plugin conflicts are also possible.

I usually use SMTPMailSender from a Windows machine to check that the outgoing SMTP mail server is accepting basic authentication for when devices are having trouble sending.

[markstultz (Mark610905)]

Could this be the issue?

Getting ErrorSendAsDenied error event

If you’re having trouble updating your plugin, check if your subscription is still active?
Maybe completely uninstall the plugin and reinstall it?

[dewayne-orender]

Gents,

Thank you so much for the assistance. Part of the issue was that I was using the incorrect email address. Once I figured that out, I get a message about:

DMARC Action Recommended: It doesn’t look like DMARC has been set up on your domain (hvaf.org). We recommend using the DMARC protocol because it helps protect your domain from unauthorized use. Please check out our step-by-step guide for details on how to add this record to your domain’s DNS. Now I am not sure whether we are suppose to do this on the store site or the domain. The instructions aren’t clear on where to put certain information

[spiceuser-12a1b]

Double-check the Outlook/Office 365 credentials in the plugin settings. The error suggests an authentication issue. Confirm your Office 365 account has permission to send mail on behalf of the address configured. Toggle the “Log emails” setting to check the debug log for more details. Temporarily switch to SMTP instead of Outlook 365 to see if emails send. Verify your WordPress PHP version meets the plugin requirements. Try downgrading the plugin version as a test. Check your WordPress site URL is valid in Settings. Disable other plugins that affect emails to test for conflicts. Completely uninstall and reinstall the plugin as a last resort.

Focus on authentication and Outlook 365 setup. Check the WP Mail SMTP docs for more troubleshooting tips.