Well, "420 TCP Read Error" is not a spamdyke error message. The remote server seems to be running Novell GroupWise -- Google says this error is caused by a slow/flaky connection between the GWIA server and the internet.
The only way I can imagine spamdyke being responsible is if you're running a version earlier than 3.0.0, before I implemented the multibyte writes. I can only think of three ways to try to troubleshoot this. First, you could turn on full logging in spamdyke to see what happens when these messages come in. If that doesn't work, you could use a packet sniffer instead. Lastly, you could remove spamdyke entirely to see if the errors stop. -- Sam Clippinger Joe Nelson wrote: > I've had an interesting issue recently where I've been unable to > receive emails from a particular email server. Unfortunately it's a > state email server that many of my users receive email from. They've > all reported the following error: "420 TCP Read Error". The server is > at 168.180.96.58. I've verified that I can telnet to port 25 from my > mail server so I know that there's no firewall blocking going on. > I've whitelisted their IP address just to see if that will bypass > anything in Spamdyke but users are still reporting the 420 TCP Read > Error message. Is this something that others have seen? If so, where > should I start looking for a solution? > > Here's my spamdyke.conf for reference: > > log-level=3 > local-domains-file=/var/qmail/control/rcpthosts > rdns-whitelist-file=/var/qmail/control/spamdyke/whitelist_rdns_names > ip-whitelist-file=/var/qmail/control/spamdyke/whitelist_ips > ip-in-rdns-keyword-file=/var/qmail/control/spamdyke/blacklist_rdns_keywords > recipient-whitelist-file=/var/qmail/control/spamdyke/whitelist_recipient > sender-whitelist-file=/var/qmail/control/spamdyke/whitelist_sender > check-dnsrbl=sbl-xbl.spamhaus.org > check-dnsrbl=bl.spamcop.net > reject-missing-sender-mx > reject-ip-in-cc-rdns > reject-empty-rdns > _______________________________________________ spamdyke-users mailing list [email protected] http://www.spamdyke.org/mailman/listinfo/spamdyke-users
