Conflict bewteen WP Mail SMTP and Site Mailer
How to resolve this issue: “Heads up! WP Mail SMTP has detected Site Mailer – SMTP Replacement, Email API Deliverability & Email Log is activated. Please deactivate Site Mailer – SMTP Replacement, Email API Deliverability & Email Log to prevent conflicts.” ?
This is a very common issue, and the warning message is giving you the exact solution.
Here’s a simple breakdown of what’s happening and how to fix it in 30 seconds.
What the Problem Is
You have two different plugins installed that both try to do the exact same job: control how your WordPress site sends email.
- Plugin 1: WP Mail SMTP
- Plugin 2: Site Mailer – SMTP Replacement…
You can only have one plugin managing your email at a time. Having two active plugins “fighting” for control will cause conflicts and make your emails unreliable.
How to Fix It
You just need to deactivate the other plugin (Site Mailer). WP Mail SMTP will then be able to work correctly.
- In your WordPress dashboard, go to Plugins > Installed Plugins.
- Find the plugin named: “Site Mailer – SMTP Replacement, Email API Deliverability & Email Log”.
- Under its name, click the “Deactivate” link.
That’s it!
Once you deactivate “Site Mailer,” the warning message in your WP Mail SMTP settings will disappear, and you can proceed with setting it up as your only email plugin.
