Change Default wp_mail From, Without Affecting Gravity Forms

Question

I have a question about changing the default sender From name/email on default wp_mail notifications (e.g., Lost Password response), but WITHOUT it messing up notifications being passed on by Gravity Forms.

I've found a few threads on changing the default From name/email, and this is what I ended up using. It did work properly to change the default sender from 'Wordpress' & '[email protected]'.

// Change default WP email sender
add_filter('wp_mail_from', 'new_mail_from');
add_filter('wp_mail_from_name', 'new_mail_from_name');

function new_mail_from($old) {
return '[email protected]';
}
function new_mail_from_name($old) {
return 'Site Admin';
}

But it ended up also changing all form submissions being passed on from Gravity Forms, as that just uses wp_mail to process the completed form submissions. The Gravity Forms submissions SHOULD retain the From name/email entered by the user when completing the form. This info is stored in the header and passed on to wp_mail for sending.

• Is there a way to modify the function so it ONLY affects any mail being sent by the default address (Wordpress & [email protected])? Maybe some sort of search/replace?

I'm also open to using SMTP sending if this could help and be more secure/robust. Unfortunately, I'm just not fluent in PHP to be able to write the function myself.

Answer 1

I think I found the answer on another forum discussing using Contact Form7, with the same issue I was having.

This is what I got from that thread and tried. It does appear to work and does appear to be only targeting email from the default 'Wordpress' sender name/email.

// Change default WP email sender
add_filter('wp_mail_from', 'doEmailFilter');
add_filter('wp_mail_from_name', 'doEmailNameFilter');

function doEmailFilter($email_address){
if($email_address === "[email protected]")
    return '[email protected]';
else
    return $email_address;
}
function doEmailNameFilter($email_from){
if($email_from === "WordPress")
    return 'Site Admin';
else
    return $email_from;
}

Let me know if there is a better way to do this. Sorry if obvious...

Answer 2

I had a related issue and coded a plugin a few weeks ago. WP-HTML Mail doesn't support gravity forms now, but if you decide to change you form to Ninja Forms, the plugin is perfect for you. I added detectors for plugins to find out which plugin just sent the mail. Changing formatting and sender can be turned on/off for detected plugins.

Answer 3

I have an SMTP plugin that will set the default Sender Address and Sender Name, but still allow plugins (like Gravity Forms) to override these values.

https://wordpress.org/plugins/postman-smtp/

Having said that, depending on who your email accounts belong to, changing the Sender Email address to a different value than what you authenticate with may help mark your Email as Spam. Namely Gmail, Hotmail and Yahoo Mail.