Oh god.. almost forgot about this post!!
We finally solved it, but do not understand how! We tried another e-mail server then it worked just fine.
Put back the original e-mail server info, then work fine..... We had programmed an auto-fill for the e-mail parameters (which were the parameters not functioning).
Used that auto-fill function, still working just good.
Sometime life's is just like that!
Thanks every one!!
Best regards,