apply_filters( 'wp_mail_from', string $from_email )

More Information

• The wp_mail_from filter modifies the “from email address” used in an email sent using the wp_mail() function. When used together with the ‘wp_mail_from_name‘ filter, it creates a from address like “Name”. The filter should return an email address.
• To avoid your email being marked as spam, it is highly recommended that your “from” domain match your website.
• Some hosts may require that your “from” address be a legitimate address.
• If you apply your filter using an anonymous function, you cannot remove it using remove_filter().