https://www.machform.com/forums/ MachForm Community Forums Topic: Can send over SMTP - Cannot modify header information en Sun, 03 May 2026 23:32:09 +0000 https://www.machform.com/forums/topic/can-send-over-smtp-cannot-modify-header-information#post-6545 Sat, 11 Jul 2009 03:35:32 +0000 wfoxworth 6545@https://www.machform.com/forums/ <p>I found the my solution which was in the Windows C:\htdocs\machform\config.php</p> <p>Change this to true from false.<br /> /** SMTP settings **/<br /> /** Don't modify it unless you know you are using SMTP **/<br /> define('USE_SMTP',true); //set this to 'true' to use SMTP</p> <p>Than add your Smart Host or SMTP Settings.<br /> define('SMTP_HOST','my.mysmtp.net');<br /> define('SMTP_PORT',25);<br /> define('SMTP_AUTH',false); //if your SMTP require authentification, set this to 'true'<br /> define('SMTP_USERNAME','YOUR_SMTP_USERNAME');<br /> define('SMTP_PASSWORD','YOUR_SMTP_PASSWORD');<br /> define('SMTP_SECURE',false); //set this to 'true' if your server is using secure SMTP (TLS/SSL)</p> <p>Note: Smart Host don't require authentication so I left mine at false. Good Luck </p> https://www.machform.com/forums/topic/can-send-over-smtp-cannot-modify-header-information#post-5595 Fri, 24 Apr 2009 21:44:38 +0000 rocketmedia 5595@https://www.machform.com/forums/ <p>Thanks Yunair, I think that was the problem. We're good now...thanks. </p> https://www.machform.com/forums/topic/can-send-over-smtp-cannot-modify-header-information#post-5590 Fri, 24 Apr 2009 16:28:13 +0000 yuniar 5590@https://www.machform.com/forums/ <p>What version of MachForm do you use?<br /> Check your changelog.txt, look into the line at the bottom.</p> <p>Version older than 2.1 doesn't support secure SMTP (usually port 587 or 465).<br /> If you are using old version, you will need to upgrade it to the latest version.</p> <p>Simply go to customer area and download it there. </p> https://www.machform.com/forums/topic/can-send-over-smtp-cannot-modify-header-information#post-5579 Fri, 24 Apr 2009 01:24:19 +0000 rocketmedia 5579@https://www.machform.com/forums/ <p>This is what I DID:<br /> I have configured config.php to set 'USE_SMTP' to true, and defined all of the other variables with accurate info (host, port, auth true, user, password) in attempt to configure the form to send over SMTP.</p> <p>This is what I EXPECTED to happen:<br /> The form to send over SMTP</p> <p>This is what ACTUALLY happened:<br /> The "thank you" page shows an error that could not send to email address. The php error<br /> log notes: PHP Warning: Cannot modify header information - headers already sent by (output started at /.../includes/helper-functions.php:482) in /.../view.php on line 40</p> <p>To add to the "This is what ACTUALLY happened" section:</p> <p>When submitting the form, the "thank you" page states: Error sending email: SMTP Error: The following recipients failed: <a href="mailto:user@email.com.comError">user@email.com.comError</a> sending email: SMTP Error: The following recipients failed: <a href="mailto:user@email.com">user@email.com</a></p> <p>Where "user@email.com" is a valid email address. </p> https://www.machform.com/forums/topic/can-send-over-smtp-cannot-modify-header-information#post-5570 Thu, 23 Apr 2009 04:40:26 +0000 rocketmedia 5570@https://www.machform.com/forums/ <p>Sorry my title should have been CANNOT send over SMTP </p> https://www.machform.com/forums/topic/can-send-over-smtp-cannot-modify-header-information#post-5569 Thu, 23 Apr 2009 04:23:54 +0000 rocketmedia 5569@https://www.machform.com/forums/ <p>I'm trying to configure Machform to send over SMTP. I have configured config.php to set 'USE_SMTP' to true, and defined all of the other variables with accurate info (host, port, auth true, user, password), and when submitting get an error message that it can't send to the email address. The php error log shows:</p> <p>PHP Warning: Cannot modify header information - headers already sent by (output started at /.../includes/helper-functions.php:482) in /.../view.php on line 40</p> <p>Any ideas what could be causing this...is this an issue with the script? I've reviewed with the hosting provider and they're saying it's a script issue.</p> <p>Thanks </p>