SMTP and "Cannot modify headers" error
I followed the instructions in the "read-me" file, uploaded the contact form files to my server, and tested the contact form completely unaltered. These are the error messages I received:
Warning: mail() [function.mail]: Failed to connect to mailserver at "localhost" port 25, verify your "SMTP" and "smtp_port" setting in php.ini or use ini_set() in C:\xampp\htdocs\RxSafe\WA_Universal_Email\mail_PHP.php on line 254
Warning: Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\RxSafe\WA_Universal_Email\mail_PHP.php:254) in C:\xampp\htdocs\RxSafe\contactus.php on line 35
I understand the first one, what is the deal with the second? Also, why didn't I see the thankyou.php popup?