Can mutt handle exclamation points instead of colons in file names?

I'm wanting to move my maildir folder to a different disk that has a Window file system. However, the file system does not allow colons (:) in file names, which Maildir uses in some file names by default. There is an option for Maildir to use another character in place of a colon. Exclamation point is common . However, I've read a warning that "you will probably loose compatibility with other programs trying to read the same Maildir. " when using this option. I only use mutt for reading this mail. Can mutt handle exclamation marks in place of a colon in filenames?