qmail sends but doesn't receive
Dear qmail users:I have qmail set-up on a dedicated server. I can send mail fine but receiving doesn't work due to this error (bounced e-mail):
...This is a permanent error; I've given up. Sorry it didn't work out.
<box@mydomain.com>:
Sorry, no mailbox here by that name. (#5.1.1)...
It says there's no mailbox, but i CAN log into my pop account to check mail.

My control files seem fine, domains are there

/var/qmail/control/defaultdomain
mydomain.com
/var/qmail/control/locals
localhost
u1435661.hosting-company.com
mydomain.com
/var/qmail/control/rcpthosts
mydomain.com
/var/qmail/control/virtualdomains
default-domain.com:1
mydomain.com:2
Please advise how to solve the problem.
Alex