Date: Tue, 5 Aug 2008 20:00:14 -0600 From: Andrew Falanga <af300wsm@gmail.com> To: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: [Off Topic] Clients still not connecting to the FreeBSD mail server Message-ID: <200808052000.14727.af300wsm@gmail.com>
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Hi, Thanks again everyone for the pointers with Outlook and my fellow church parishoners. I'm hoping for some more pointers. Using tcpdump I'm fairly certain that the initial SYN packets from the clients are never reaching the server. I'll need to test one more time to be sure (I wasn't 100% positive of the public IP address on the Internet side of the cable modem installed). Never the less, from home here I've verified what I should see if the initial SYN packets are received at the server and now know what to look for. (Who knows, maybe the wireless router knows it's in a church and has decided no SYN's allowed. Ok, that was bad.) What I'm hoping to glean from the experts here is about wireless routers. I've never used them before, but one of the pastors was reasonably certain that the problems commenced for the one person who never had problems, the secretary, when she was switched from wired to wireless operations. Sunday I was briefly able to see the administration pages of the wireless access point, however nothing seemed to jump off the page at me that, "Yeah, this is what's blocking them." However, it definitely seems that something is preventing traffic over port 25 because we can all browse the Internet just fine. I've verified the same timeout behavior with Outlook Express and Thunderbird. Using Thunderbird, I was able to check different settings too. The settings should be to use authentication on the smtp server using SSL. Someone, please educate me, does this mean that the authentication takes place over port 465 and the regular smtp still takes place over 25, or do both take place over 25? I ask because KMail (my setup at home that works) says to use SSL, not TLS which uses port 465. At the server, I use sockstat and see that on IPv4 sendmail has an open port on 465. Thanks, Andy
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