if I try to send emails , I would get the following message

The message could not be sent because one of the recipients was rejected by the server. The rejected e-mail address was [email protected]. Subject test, Account: mail.bbsonly.com (1), Server: mail.bbsonly.com, Protocol: SMTP, Server Response: 550 5.7.1 ... Relaying denied. IP name lookup failed [202.144.237.137], Port: 25, Secure(SSL): No, Server Error: 550, Error Number: 0x800CCC79"


I used an email account in another server to send emails to this server

I got :

----- The following addresses had transient non-fatal errors -----
[email protected]

----- Transcript of session follows -----
... while talking to ns.aaa.com:
>>> RCPT To:
<<< 451 4.0.0 Cant create transcript file ./xfg93AdE505274: Permission denied
... Deferred: 451 4.0.0 Cant create transcript file ./xfg93AdE505274: Permission denied
Warning: message still undelivered after 4 hours
Will keep trying until message is 5 days old


how do I fix them ? please help