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23 lines
1.1 KiB
Text
23 lines
1.1 KiB
Text
Citadel is a turnkey open-source solution for email and collaboration.
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It contains both the server and a text-mode client. You can build an entire
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working system with this, or you can just build the client and connect to
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some other existing system. It also provides connectivity through:
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* SMTP (Port 25 by default)
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* POP3 (Port 110 by default; SSL Enabled on port 995)
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* IMAP (Port 143 by default; SSL Enabled on port 993)
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* Citadel (Port 504; used by dedicated Citadel clients)
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* SMTP-MSA (Port 587; requires SMTP authentication)
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* ManageSieve (Port 2020; edit your mail filtering scripts with
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your favorite GUI client)
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* Postfix TCP dictionary (if you have an upstream mail hub running
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Postfix, it can use this service to verify valid email addresses
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on your Citadel)
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* lmtp.socket (Local mail transport, for use with an external MTA
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if for some reason you do not wish to use Citadel's built in SMTP
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service)
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* lmtp-unfiltered.socket (same as above, but without spam filtering)
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* citadel.socket (Citadel protocol)
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After installation, run /opt/citadel/setup to configure Citadel.
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