Warning: fopen(/domains/smtp-error-codes.info/public_html/bezoekers.log): failed to open stream: Permission denied in /domains/smtp-error-codes.info/public_html/includes/log_bezoeker.inc on line 15 Warning: fwrite() expects parameter 1 to be resource, boolean given in /domains/smtp-error-codes.info/public_html/includes/log_bezoeker.inc on line 16 Warning: fclose() expects parameter 1 to be resource, boolean given in /domains/smtp-error-codes.info/public_html/includes/log_bezoeker.inc on line 17 Hotmail bounce message 550 OU-001
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Hotmail bounce message 550 OU-001

Mail rejected by Outlook for policy reasons. If you are not an email/network admin please contact your Email/Internet Service Provider for help. For more information about this block and to request removal please go to: http://www.spamhaus.org.

Stop all this jibber jabber, what does it mean?

Hotmail blocked your email because either the SMTP server you are using or your IP address is listed on a blacklist.

Did I do something wrong?

Probably not, unless you know you have been sending spam.

How can I fix this?