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Citadel Imap and Mac OS/X 10.6.5 Mail.app
https://forum.linode.com/viewtopic.php?f=11&t=6334
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Author:  sdrach [ Sat Nov 27, 2010 3:28 pm ]
Post subject:  Citadel Imap and Mac OS/X 10.6.5 Mail.app

Has anyone successfully gotten Mail.app to access secure Imap hosted by Citadel? I'm using port 993 for Imap. I checked the SSL box. But no joy. Likewise, I can't seem to connect with SMTP for outgoing mail.

I'm not even sure how to debug it since it's SSL. Any help is appreciated.

Author:  jebblue [ Sat Nov 27, 2010 3:46 pm ]
Post subject: 

I don't use Mac but hopefully these steps will help you with debugging if the issue is in your firewall.

Try installing Thunderbird for a test. If that can't connect then either Citadel is not configured right or your firewall is not opened up for port 993 traffic.

To check if iptables is allowing traffic run:

sudo iptables -L -n | grep 993

You should see:

ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:993
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:993

Good luck.

Author:  sdrach [ Sat Nov 27, 2010 6:25 pm ]
Post subject: 

Thanks for the idea, but in my case I have Mail.app configured to talk on port 993 for other mail servers on other sites, so I know 993, and 465, and 567 (?) are not being blocked. But setting up Thunderbird might give me a clue.

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