Google Apps Domain Create SPF Records For BIND or Djbdns

Posted on in Categories , last updated October 22, 2010

I work for a small business and outsourced our email hosting to Google. However, I noticed that spammers are using our From: First Last to send their spam messages. All bounced messages come to our catch only account. How do I stop this? How do I validate our domain using SPF? How do I configure a SPF for Google Apps domain using BIND 9 or djbdns?

SPAMHAUS BLOCKLIST ADDRESS IS WRONG MUST FIX Error and Solution

Posted on in Categories , , , , , last updated May 7, 2009

I‘ve configured RBL for my postfix based mail server and I’m getting an error that read as follows:

May 3 04:35:37 mx02 postfix/smtpd[10956]: NOQUEUE: reject: RCPT from ant251.neoplus.adsl.tpnet.pl[83.26.101.251]: 554 5.7.1 Service unavailable; Client host [83.26.101.251] blocked using xen.spamhaus.org; SPAMHAUS BLOCKLIST ADDRESS IS WRONG MUST FIX; from= to= proto=ESMTP helo=

How do I fix this problem?