option to use another character, instead of @ for the ftp separator. add: ftpsep=@ in your directadmin.conf, where @ is the character you want to swap. The + character would be a good alternative. Note: there is no swap script to change existing accounts. If you are to use a different separator, then it's recommended to do it before you create any ftp accounts. Else, you'll need to swap the @ character with the one you wish manually.