Directory name have some malicious characters.

[hfh at cndns.com]

Directory name have some malicious characters, is it safe?How can I
exclude some characters,thanks! 

 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://dovecot.org/pipermail/dovecot/attachments/20190520/e3ea2c53/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: smiley-laughing.gif
Type: image/gif
Size: 343 bytes
Desc: not available
URL: <https://dovecot.org/pipermail/dovecot/attachments/20190520/e3ea2c53/attachment.gif>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: c9c77b51290ff5d9ec8215eb7aefdb34942.jpg
Type: image/jpeg
Size: 6416 bytes
Desc: not available
URL: <https://dovecot.org/pipermail/dovecot/attachments/20190520/e3ea2c53/attachment.jpg>