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Need assistance please! Sophos email appliance error 550 5.7.1 Authentication Required

550 5.7.1 Authentication Required

Outside email cant send to our email server through sophos email appliance.

See sample error.

Logs

2014-09-17 08:36:42 mx2 postfix/smtpd[14459]: NOQUEUE: reject: RCPT from unknown[195.171.192.120]: 550 5.1.1 <jzdejemil@ffcruz.com.ph>: Recipient address rejected: undeliverable address: host 122.53.18.138[122.53.18.138] said: 550 5.7.1 Authentication Required (in reply to MAIL FROM command); from=<customerservice@sophos.com> to=<jzdejemil@ffcruz.com.ph> proto=ESMTP helo=<mx6.sophos.com>

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0 Red_Warrior over 10 years ago

you may need to update your routing to allow that mailer to relay mail... add them to the mail domains under the routing menu.
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