Unsolicited Mail Delivery (Bounce) Messages

Unsolicited Mail Delivery (Bounce) Messages

You may receive email bounce messages (mail delivery failed) for messages you haven't sent. This is caused by spammers putting your email address in the "From" field and is known as Email Spoofing. It may help to think of it as someone writing your address on the letterhead of a letter they send; the recipient of the letter would reply to you rather than the actual sender.

Email AuthenticationTo combat this we suggest enabling one or both of DomainKeys and Sender Policy Framework (SPF) in cPanel under "Email Authentication". This will let other service providers know that our server is the one which is authorised to send email from your domain, so they can ignore messages with forged headers. (Not all providers support DomainKeys and SPF yet, so you'll still receive bounce messages, just hopefully not as many.)

  • 2 Users Found This Useful
Was this answer helpful?

Related Articles

Email Error - Plaintext authentication disallowed on non-secure (SSL/TLS) connections

If you see the following error message in your email client when attempting to check your emails,...

What are the mailserver ports?

Secure POP3 is on port 995 Secure SMTP is on port 465 Secure IMAP is on port 993 Note: For...

I can't send email because my ISP blocks SMTP (port 25)

Some ISPs block their customers from accessing other ISPs mail servers, in an attempt to stop...

FTP Error - Cleartext sessions are not accepted

If you see the following error message in your FTP client when attempting to connect, this means...

"500 Internal Server Error" when adding "FollowSymlinks" or "All" to Options in .htaccess

Trying to change the "FollowSymlinks" option in a .htaccess file will result in an internal...