<HTML><HEAD> <TITLE>Changes to the Cyrus IMAP Server</TITLE> <!-- Changed by: Larry Greenfield 15-Aug-1999 --> <!-- Changed by: Larry Greenfield 01-Jul-1999 --> <!-- Changed by: Tim Showalter 16-Jun-1997 --> <!-- $Id: bugs.html,v 1.29 2006/11/30 17:11:16 murch Exp $ --> </HEAD><BODY> <h1> Known bugs in the Cyrus IMAP Server</h1> <p>We're working on moving to a <a href="http://www.mozilla.org/bugs/">Bugzilla database</a>. It's still being built up, but you can search/add to it <a href="http://bugzilla.andrew.cmu.edu">here</a>. Eventually, all the bugs below will be in there.</p> <h3>imapd and core utilities</h3> <ul> <li> Multiple APPENDs don't always correctly return the EXISTS response. (can't reproduce?) <li> Particularly large quotas can wrap around. <li> The RENAME command is not atomic. <li> <tt>reconstruct</tt> doesn't deal with the <tt>mailboxes.db</tt> file. <li> we should deal with having to reset UIDs <li> the algorithm used for naming stage files is fragile and not threadsafe. <li> during appendstage(), the message is parsed once per delivery, not once at the beginning. <li> <tt>master</tt> should pay attention to processes that have told it they are listening, and make sure they don't die abnormally. likewise, it should be on the lookout for continually forking services. <li> <tt>master</tt> should probably have a babysitting service ("always keep this process running"). </ul> <h3>proxyd and Cyrus Murder</h3> <ul> <li> RENAME across servers isn't implemented. <li> Tagged lines with literals can cause problems for <tt>proxyd</tt>. </ul> <h3>lmtpd, deliver, and sieve</h3> <ul> <li> 8-bit set characters are coerced to 'X', but not before the notify_zephyr code (if used) has had a chance to send them out. <li> Deliver does not handle messages containing NUL properly due to stdio problems (the characters between the NUL and the LF will be lost.) <li> Deliver doesn't gracefully handle CR CR sequences in messages. Well, ok, it hangs. </ul> <h3>authentication and authorization</h3> <ul> <li>Using AFS groups with ptclient, users with negative rights as part of groups may be granted access to mailboxes if ptclient has died. We plan to have this fixed eventually. <li> In some failures of the krbck program, the error messages printed out bear no resemblance to what actually went wrong. </ul> <h3>other utilities</h3> <ul> <li> <tt>cyradm</tt> may need to change authname/username stuff. Something to check. <li> <tt>imtest</tt>: it would be nice for the authorization name to default to the authentication name, except when specifically overridden. <li> any utilities doing db operations should catch signals and poll for them to see if it should exit (like mbpath, ipurge). <li> <tt>imtest</tt> uses <tt>getpass()</tt> to grab passwords from users. On some systems (Solaris reported), this will only return the first 8 characters, causing authentication failures. </ul> <h3>libraries</h3> <h1> Things we want to do</h1> <ul> <li> Implement the IMAP VIEW extension. <li> Implement the IMAP ANNOTATE extension. <li> Implement some sort of backup/restore system that's more efficient and easier to use than Amanda on the filesystem. <li> Add mailbox version numbers. <li> Add mailbox tombstones (gives NEWNAME support). <li> Design and implement ALIST, the advanced list command. <li> Investigate changing from the prot layer to using sfio. <li> Write a test module for lmtpengine. <li> Allow renaming users. (RENAME user.joe user.harry.) Needs to move all metadata per-user data. (seen, subscriptions, sieve state?) </ul> <p> <p>Please refer to <a href="feedback.html">Sending Feedback</a> if you would like to submit a bug, feature request or (best of all) patch. <P><HR> Last update: $Date: 2006/11/30 17:11:16 $ <br> <A HREF="index.html">Return</A> to the Cyrus IMAP Server Home Page </BODY></HTML>