I am trying to add links to an email, but they do not resolve and point to a 404 error instead. The message I get is:

"Forbidden
You don't have permission to access /lm/lm.php on this server.
Additionally, a 404 Not Found error was encountered while trying to use an Error Document to handle the request."

The links show up when looked at as plain text in the following way:

http://www.clearmountainpublishing.com/ ... citymw.com

I have simply typed this link in the email as http://www.velocitymw.com.

The emails show up as opened, so MLM seems to work partly (cmodded as 755). Can anyone help me what I am doing wrong?

Did you try 777 or 775?

I did. Unfortunately, 755 was the only way it would work. I can create lists, subscribe/unsubscribe, get the open rate, but only the links do not resolve.

Have you asked your server support? Ask them why http://www.clearmountainpublishing.com/lm/lm.php?tk=bWFudWVsCQkJbWFudWVsQHN0YWdhcnMuY29tCVtOZXdzXSB0ZXN0IG1lc3NhZ2UJMjgJCTIJY2xpY2sJeWVzCXllcw==&url=http%3A%2F%2Fwww.velocitymw.com causes a HTTP 'Forbidden - You don't have permission to access /lm/lm.php on this server.' error but http://www.clearmountainpublishing.com/lm/lm.php works fine.

I will do that.

I went ahead and reinstalled the LM script again (latest version from the website). Now, the links show up like this, and also do not resolve:

http%3A%2F%2Fwww.velocitymw.com

lm/lm.php works fine.

How could I fix this? I already tried erasing the link in preferences and typing it again, as I noticed that that had solved another user's similar issue.

http%3A%2F%2Fwww.velocitymw.com is correct, this is an encoded URL. %3A means ':' and %2F means '/'.

I spent some time with tech support of my hosting provider and solved the problem. Below what came about, this may help others. Below a synopsis of what the techie said:

Had to use a tool called mod security. It seems that the lm.php script uses tim_thumb which is a wp plugin.

[error] [client 74.202.255.243] ModSecurity: Access denied with code 403 (phase 2). Match of "rx (/wp-content/plugins/one-click-plugin-updater)|(www/delivery/ajs.php)|(www/admin/dashboard.php)|(/wp-content/(themes|uploads)(?:/(\\\\w+))*/(tim)?thumb.php|/pl/download\\\\?file=http|/index\\\\.php/admin/system_config/save/section/payment/|^/b/ss/mxmacromedi ..." against "REQUEST_FILENAME" required. [file "/opt/mod_security/hg_rules.conf"] [line "91"] [id "1234234"] [msg "JITP:1234234"] [hostname "www.xxx.com"] [uri "/lm/lm.php"] [unique_id "TeVRnEZWDIIAAFQ8ACIAAADd"]