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WPForms Lite Email Configuration (for SMTP with [email protected])

To avoid the “Sender address rejected” error while sending to different recipient addresses (like [email protected]), follow these steps: Step 1: Configure WP Mail SMTP

1. Go to WP Mail SMTP → Settings.
2. Set:

• From Email: [email protected] (must match your SMTP login!)
• Force From Email: ✅ Enabled (critical to prevent rejection)

Step 2: Form Notification Settings For Form 1 (e.g., Contact Form → [email protected]): Field Value Why? Recipient Email[email protected] Who receives the email Email SubjectNew submission: {form_title} Dynamic subject line Sender NameYour Company Name Displayed in inbox Sender Email[email protected]MUST match SMTP auth email!Reply-To{Field #17: Email} Replies go to the user Message{all_fields} Shows all form data TemplatePlain (or your choice) – For Form 2 (e.g., Support Form → [email protected]):

• Use the same Sender Email ([email protected]) but change Recipient Email to [email protected].

Why This Works

• SMTP Compliance: The server only allows sending from [email protected] (your authenticated address).
• User Experience:
• Recipient sees emails “from” Your Company Name <[email protected]>.
• Replies go to the user’s email (via Reply-To).
• Avoids errors like:

“Sender address rejected: not owned by user [email protected]”

Alternatives

1. Whitelist [email protected] in SMTP:

• Ask your email host (e.g., Gmail, Office 365) to add [email protected] as an alias.

1. Advanced: Filter (for developers):
   Add to functions.php to override the “From” display (but keep SMTP auth):

   add_filter('wpforms_email_headers', function($headers, $form_data) {
       if ($form_data['id'] == FORM_ID) { // Replace FORM_ID
           $headers = "From: Your Company <[email protected]>\r\n";
       }
       return $headers;
   }, 10, 2);

Note: Some SMTP servers may still block this.Troubleshooting

1. Test Emails:

• Use WP Mail SMTP → Email Test to verify delivery.

1. Check Logs:

• Enable Email Log (Pro feature) or check server logs.

1. SPF/DKIM:

• Ensure domain.com’s SPF record includes your SMTP server’s IP.