We Cant verify that this email came from the sender so it might not be safe ...

[mason64]

Hey

Just wondering how i can stop this message coming up when sending an email via a contact form on a site i have hosted. is it a IP issue or a server setting that i need to change or do i need to add any dns records ?

Thanks in advanced.

Dave

[overseer]

Is it via a php script? Does it use the php mail function or does it properly authenticate via SMTP?

[mason64]

its the plugin fluent forms on wordpress i didnt set any smtp settings so must be via php mail function
Thanks
Dave

[cyberspace]

Then install some SMTP plugin for Wordpress like "WordPress Mail SMTP" and configure it to send emails using SMTP with authorization.

[overseer]

Yes, the php mail function is not safe to use and is deprecated in AlmaLinux -- so use a proper alternative (SMTP) that authenticates, logs, and has manageable rate limits.