Hi @astreetweb
Formidable is fully compatible with PHP 7.4 – and I believe our developers have even been finalizing 8.0 compatibility recently.
HTML in the email is usually caused by spam filters sanitizing messages.
In most cases, we discover that emails leave the website correctly, but are sanitized or deleted before delivery by internet spam protection measures. Because spam protection rules are constantly getting stricter, a form that previously worked can sometimes stop working out of the blue, even if nothing has changed on your website.
Do you currently have an SMTP plugin installed to send your emails? If not, I recommend installing and configuring one straight away. Most SMTP plugins will do the job, but I’d recommend looking for one that includes message logging – these logs can be useful if we need to investigate the issue further. Personally, I use a free plugin called “Post SMTP”.
SMTP sends messages in a way that looks more legitimate than the built-in WordPress mail service and helps your messages pass spam filters.
You should also check that your email messages are configured properly – here are 7 important things to check:
* Your SUBJECT line must not be blank.
* Your FROM address MUST match the domain of your website. It is often best to set up a dedicated email for this, like [email protected].
* Your TO address should never match the FROM address. This looks unusual and can trigger spam deletion.
* If you specify a REPLY-TO address, it should never match the TO address.
* While you can include multiple addresses in your TO field, it is best to use the CC and BCC fields for additional recipients.
* Many spam filters are triggered by too many recipients in one email. For large lists (50 or more recipients), consider a service like Sendgrid or SendInBlue.
* Minimize the links you include. Email messages with lots of links may trigger spam filters.
Let me know if that helps.