SMTP ->ERROR: RCPT not accepted from server

SMTP ->ERROR: RCPT not accepted from server

by Stoney Cook -
Number of replies: 0
Using sendmail on a separate SMTP host. Mail works when user requests Password. However when a new account is being requested the following is reported if SMTPDebug is enabled.

SMTP ->ERROR: RCPT not accepted from server:
SMTP ->get_lines(): $data was ""
SMTP ->get_lines(): $str is "250 2.1.5 ... Recipient ok "
SMTP ->get_lines(): $data is "250 2.1.5 ... Recipient ok "
SMTP ->FROM SERVER: 250 2.1.5 ... Recipient ok ERROR: SMTP Error: The following recipients failed: test@test_domain.com

Note telenet to the SMTP host and RCPT TO: test@test_domain.com works fine.

I am leary that SMTP ->get_lines(): $data was "" is null. Also shouldn't reply from sendmail respond with:
250 2.1.5 test@test_domain.com... Recipient ok

TIA
Stoney
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