If you ever tried to send e-mail messages that never seem to reach the destination, don’t blame PHP limited built-in mail capabilities! You may be victim of having your mail server blacklisted for SPAM that you never sent.
Manuel Lemos of PHPClasses.Org shares an article that guides through the way to avoid being blacklisted for SPAM messages that you never sent. Here is the key points of his article:
- SPAM traps
- Auto-replying to spam trap messages
- Avoiding sending messages to spam trap addresses
- Using SPF to discard spam trap messages
Read the full article.
I just wanted to share because I found the article interesting.