X-cart question(s)

hi,
i've recently purchased Xcart software through ebay, i've installed it and now i'm having some running problems. one thing i've noticed is that if a member is signing up for a certain membership i (the admin) has to approve it before the member can use the membership functions. My question: is there a way i can set it so it automaticly approves memberships?

i'm also getting this error

i get this error come up when a customer
uses the signup function or when any mailing function is used:

Warning: mail(): SMTP server response: 554 : Recipient address
rejected: Relay access denied in
\\nas22ent\domains\s\domain.com\user\htdocs\includ e\func.php on line 258

another error

Warning: mail(): SMTP server response: 554 Error: no valid recipients
in
\\nas22ent\domains\s\domain.com\user\htdocs\includ e\func.php on line 258

or

Warning: mail(): SMTP server response: 554 : Recipient address
rejected: Relay access denied in
\\nas22ent\domains\s\domain.com\user\htdocs\includ e\func.php on line 258
Warning: Cannot modify header information - headers already sent by
(output started at
\\nas22ent\domains\s\domain.com\user\htdocs\includ e\func.php: in
\\nas22ent\domains\s\domain.com\user\htdocs\includ e\func.php on line 181

is this something wrong with my xcart settings? or server settings?



lastly, i find when a customer/admin is logged in they just log out for no apparent reason. does anyone know how i can go about fixing these problems?

thanks in advanced

As far as I know every X-Cart owner has access to the community forums as well as to the support HelpDesk. I guess it would be better for you to post your question in the place where experienced X-Cart users (or even developers) could answer it.

If you don't have the access, I'm affraid your purchased a non-licensed version of X-Cart. If so, contact X-Cart as soon as possible before they catch you