Hi, I'm running 1.5.2, all working well. when I get emails with PDF, usually, they are "application/pdf" and open with PDF reader, BUT, some emails have them as "application/octet-stream", in which case they attempt to open directly inside SM with PS characters/codes is there any way to tell SM to always open all .pdf files with PDF reader I'm afraid my senders will keep sensing like they do... application/octet-stream application/pdf You are using SquirrelMail version: 1.5.2 [SVN] The administrator installed the following plugins: none installed ----- squirrelmail-users mailing list Posting guidelines: http://squirrelmail.org/postingguidelines List address: squirrelmail-users@xxxxxxxxxxxxxxxxxxxxx List archives: http://news.gmane.org/gmane.mail.squirrelmail.user List info (subscribe/unsubscribe/change options): https://lists.sourceforge.net/lists/listinfo/squirrelmail-users