Hi Eric / all,

I have the following problem: I need to open the mailserver for a reporting system from SAP. That system cant use authentication or ssl connection - just a plain communication over 25 - but from inside (protected) network. Of course the traffic is blocked by the spamdyke. I tried to exclude the ip from being checked in the file tcp.smtp, but the error remains.

Can anybody please help me to solve this problem?

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*The error message:*

May 25 16:03:17 mail spamdyke[25033]: DENIED_RDNS_MISSING from: [email protected] to: [email protected] origin_ip: 10.10.10.10 origin_rdns: (unknown) auth: (unknown) encryption: (none) reason: (empty)

*My tcp.smtp settings for that ip are:*

10.10.10.10:allow,RELAYCLIENT="",RBLSMTPD="",SENDER_NOCHECK="1"

Best regards,

Todor

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