Extra character "<" added with hmailserver

[kemistry]

Hi , i've searched through the forum to see if anybody had the same problem but i havn't found anything...

I'm having some problems sending emails with Roundcube,
i can recieve them  without problems , but when i send one , it never arrives and when i check into hMailServer logs i see an extra "<" in front of all my emails!

I thought that it was due to hmailserver but the automatics mail sent by it are always sent without any problem...
So... did someone encountered this problem before ?

Thank you.