Hi, I have a postfix(postfix 2.6.5) mail receiving server.
On this I have used an email filter (sendmail-jilter http://sendmail-jilter.sourceforge.net/) that have some of my custom code. Following setting is used for the milter in 'main.cf': #Milter support for smtpd mail smtpd_milters = inet:localhost:10028 milter_protocol = 2 Here on email loads of approx 40/hour the setup is fine but for email loads of approx 600/hour, I am facing following messages in postfix logs: Aug 9 07:34:12 ip-10-244-155-191 postfix/cleanup[10308]: warning: milter inet:localhost:10028: can't read SMFIC_EOH reply packet header: Success Aug 9 07:34:12 ip-10-244-155-191 postfix/cleanup[10308]: 771CB100168: milter-reject: END-OF-MESSAGE from xxx.atlanta.xx.com[15.xxx.32.xx]: 5.5.0 Service unavailable; from=<xxxx.x...@**.com> to=<739afne44u...@load.xxxx.xxxx.net> proto=ESMTP helo=<xxx.atlanta.xx.com> On checking the milter side logs I can see that mail is getting passed successfully but because of above logged problem the email sender server gives out '550 5.5.0 Service unavailable' in the inbox of mail sender. Any idea what's going on? Please help!!! Thanks in advance Ashish Sharma
