Why Isn\'t My PHP Mail Function Sending Emails?

Troubleshooting PHP Mail:

When attempting to send mail using PHP's mail() function, it's possible to encounter issues that prevent emails from being delivered. To track down such problems, consider the following steps:

• Check Sender Address Domain: Ensure that the "From" email address belongs to a domain hosted on your server.
• Blacklist Verification: Verify that your server's IP address is not listed on any blacklists (e.g., spamhaus.org). This is particularly relevant if using shared hosting.
• Spam Filter Check: Create an account with a free email provider that has a dedicated spam folder and send a test email. Additionally, try sending to an address without a spam filter.
• Mail() Fifth Parameter: If necessary, utilize the fifth "-f" parameter of the mail() function to specify a sender address. Refer to the PHP manual for details.
• Log File Inspection: Consult server log files for any error messages related to mail delivery.
• Bounce Mail Monitoring: Keep an eye on the "from:" address for potential bounce mails (returned to sender) or establish a separate "errors-to" address.

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