19 lines
1.2 KiB
Text
19 lines
1.2 KiB
Text
Prayer is a small and fast HTTP to IMAP gateway written entirely in C.
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* Uses persistent connections to IMAP server and support servers.
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* Target folders remain SELECTed: not a simple-minded proxy.
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* Full caching (including sort/thread cache) for each open folder.
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* Up to five persistent IMAP connections (typically one or two in use):
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o INBOX and one other folder
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o Postponed message folder stream
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o Preferences stream
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o Folder transfer stream
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o Various optimisations/sharing to minimise actual IMAP connections
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* Directory cache: single round trip to IMAP server for directory listing.
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* Works well with UW IMAP server (even using Unix format mail folders).
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* Little discernible load on a Pentium III class system running Linux with
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5,000 logins/day (400 logins/hour, 150 concurrent logins)
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* Uses 10% to 20% of the CPU and 400 MBytes of RAM on a PIII class system
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with 23,000 logins/day (1,700 logins/hour, 850 concurrent logins peak)
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* Aggressive HTTP/1.0 and 1.1 connection caching to reduce SSL overhead.
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* Optional gzip compression of pages tunable by IP address range.
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* Minimal use of fixed length buffers in C source code.
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