Problems with Unsubscribe

I am getting this error, please help!

Error: Subscription cancellation failure
We're sorry, but the cancellation of your subscription to all lists has failed due to a server error. Please wait a while and try again. If the problem persists please contact us at

[: ]
This is what my ISP gave me for the errors when my automatic install failed....

I've checked our logs and found the following error message there:
Mon Jun 14 12:54:43 2010] [error] [client] Premature end of script headers: subscribe_single_fixed.php, referer: http://.com/lm/html/index.html
[Mon Jun 14 12:54:43 2010] [error] [client] File does not exist: /home//public_html/500.shtml, referer: http://.com/lm/html/index.html
[Mon Jun 14 12:54:51 2010] [error] [client] SoftException in Application.cpp:601: Directory "/home/public_html/lm" is writeable by group, referer: http://.com/lm/index.html
[Mon Jun 14 12:54:51 2010] [error] [client] Premature end of script headers: subscribe_single_fixed.php, referer: http://.com/lm/index.html


Staff member
Try to install MLM manually. You can do that with a FTP software like Transmit, Fetch, CoreFTP… This how you have to proceed:

1.- Open the lm/lm_settings.php file with a text editor.
2.- Edit the script settings and save (each setting is explained in the file). [1]
3.- Upload the ‘lm’ folder to your FTP server (in your public folder). [2]
4.- Use your FTP software to CHMOD the ‘lm’ folder to 777 (or 775 or 755). [3]
5.- Enter the ‘lm.php’ full URL and your user ID and password to MaxBulk preferences.
6.- If you have selected to use mySQL run the script with the ‘Init’ command:


[1] The lm/lm_settings.php contains all the parameters you can change to customize the script to match your needs. When doing a manual installation it is important to open that file with a plain text editor like Notepad on Windows or TextEdit on the Macintosh.

[2] Never upload MLM to your home root folder if you have a specific folder for public html documents like ‘public’, ‘html’, ‘public_html’, ‘web’, ‘www’, ‘httpdocs’. Just open the folder or any subfolder first!

[3] If you don’t know how to CHMOD a folder with your FTP software please read your FTP software manual. It is possible your server doesn’t like you to CHMOD the ‘lm’ folder to 777 (showing an ‘Internal Server Error’ when you try to run the script with your browser) so just try 775 or 755.

The lm/html folder includes a few sample pages for subscribing customers to your lists (to a fixed single list, a single list from a selection or multiple lists at once) and a sample page for uploading lists to MLM (despite you can do that from MaxBulk Mailer as well).


Staff member
You have to edit the lm_settings.php file. You can turn mySQL on setting $use_mysql to 1. Then set the database address, your mySQL user name, password and database name. You can get all the data from your web hosting company.