Hi I have an issue. SAGE is a online accounting firm that sends out invoices on behalf of there clients. There ip's / mail severs have been black listed on Spamhaus as Spammers even though technically they are not. I have added the spf1 record as per their request I have also added the address / mail servers to the whitelist. On both the server and client whitelists The funny thing is that the Statements come through (from the same ip's / mail server's) but their Invoices don't come through. So my actual question is. How do I go about getting my server to accept mail from their ip's / mail server addresses EA5091CD2F0A: milter-reject: END-OF-MESSAGE from o3.ptr2980.sagecommunicationsc2c.com[149.72.218.80]: 4.7.1 Try again later; from=<bounces+23097853-873a-rudi=Somedomain.co.za@em6131.accounting.sageone.co.za> to=<[email protected]> proto=ESMTP helo=<o3.ptr2980.sagecommunicationsc2c.com> Mar 17 15:35:23 ns postfix/cleanup[36273]: DB1B01CDCED9: milter-reject: END-OF-MESSAGE from o5.ptr4356.sagecommunicationsc2c.com[149.72.191.103]: 4.7.1 Try again later; from=<bounces+23097853-873a-rudi=Somedomain.co.za@em6131.accounting.sageone.co.za> to=<[email protected]> proto=ESMTP helo=<o5.ptr4356.sagecommunicationsc2c.com> Mar 17 15:36:29 ns postfix/cleanup[36273]: E83171CCB33A: milter-reject: END-OF-MESSAGE from o3.ptr2980.sagecommunicationsc2c.com[149.72.218.80]: 4.7.1 Try again later; from=<bounces+23097853-873a-rudi=Somedomain.co.za@em6131.accounting.sageone.co.za> to=<[email protected]> proto=ESMTP helo=<o3.ptr2980.sagecommunicationsc2c.com> Mar 17 15:38:05 ns postfix/cleanup[36273]: 222B41CCB33A: milter-reject: END-OF-MESSAGE from o5.ptr4356.sagecommunicationsc2c.com[149.72.191.103]: 4.7.1 Try again later; from=<bounces+23097853-873a-rudi=Somedomain.co.za@em6131.accounting.sageone.co.za> to=<[email protected]> proto=ESMTP helo=<o5.ptr4356.sagecommunicationsc2c.com> Mar 17 15:40:13 ns postfix/qmgr[1589]: C99991CCB33A: from=<bounces+23097853-873a-rudi=Somedomain.co.za@em6131.accounting.sageone.co.za>, size=205570, nrcpt=1 (queue active) 1CDD47B: milter-reject: END-OF-MESSAGE from o3.ptr2980.sagecommunicationsc2c.com[149.72.218.80]: 5.7.1 Spam message rejected; from=<bounces+23097853-179f-vanessa=Somedomain.co.za@em6131.accounting.sageone.co.za> to=<[email protected]> proto=ESMTP helo=<o3.ptr2980.sagecommunicationsc2c.com> Mar 22 06:43:23 ns postfix/cleanup[1199019]: 909D81CC5BF7: milter-reject: END-OF-MESSAGE from o3.ptr2980.sagecommunicationsc2c.com[149.72.218.80]: 5.7.1 Spam message rejected; from=<bounces+23097853-179f-vanessa=Somedomain.co.za@em6131.accounting.sageone.co.za> to=<[email protected]> proto=ESMTP helo=<o3.ptr2980.sagecommunicationsc2c.com>