Hi, guys.
I have installed OScommerce. Everything is working. I have only one error. During registration the user receives a notification email.

I checked out a lot:
sendmail - works;
sending a message using the form on the site - works;
sendmail log file hasn't errors.

You have such a problem? Please help understand my problem.

thank you!

If your sendmail log file shows that the e-mail was delivered, then you should check your spam folder, in case it was delivered there instead. Or, if your mailbox doesn't have a spam folder, try sending a test message to a mailbox that does have a spam folder (such as Gmail).