Help with email forwarding

1. Quick Checks

1. Forwarding active? Make sure the email forwarding is set up correctly and is active. You can find active forwardings in the Dashboard under Email → Email Forwarding.
2. Check spam and other folders: In the destination mailbox, look in Spam or Junk as well as in custom rules or filter folders.
3. Safelist the sender: Add the forwarding address as a contact or place it on the allowlist so forwarded emails are not flagged as spam.
4. Test correctly: Do not send test emails from the same address that the emails are being forwarded to. Sender and recipient must not be identical, as some providers block this.
5. Cross check with a second mailbox: If you have another email account, test forwarding there. If it works, the issue is likely with the original destination mailbox.

2. Final Checklist

• Destination mailbox is not full
• Spam and filter folders checked
• Forwarding is active and set up without a loop
• Test email sent from a different sender address

3. If forwarding repeatedly or intermittently fails

If the checks above are correct and emails still do not arrive consistently or only fail from time to time, review the following additional technical causes.

1. SPF or DMARC blocking common with Gmail
   Some providers such as Gmail block or mark forwarded emails as spam if the original sender authentication is not valid.
   Check the spam folder for notes such as SPF failed or DMARC policy.
2. Gmail categorization
   Emails may automatically appear in tabs such as Promotions, Updates, or Notifications. Make sure to check those tabs as well.
3. Temporary delay due to greylisting
   Some providers intentionally delay incoming emails by about 10 to 30 minutes. Wait up to one hour and check again before assuming the email was not delivered.

4. Check email headers advanced analysis
   Open a received test email and select Show original. Review the authentication results:

   • SPF = pass
   • DKIM = pass
   • DMARC = pass

   If you see fail or softfail, the issue is usually related to sender authentication.

5. Test with an alternative destination address
   Temporarily forward emails to another mailbox such as Outlook or GMX. If it works there, the issue is likely with the original destination mailbox.