<!DOCTYPE HTML public "-//W3O//DTD W3 HTML 4.0//EN"> <HTML> <HEAD> <link rev=made href="mailto:esr@snark.thyrsus.com"> <meta name="description" content="Known bugs and to-do items in fetchmail"> <meta name="keywords" content="fetchmail, POP3, IMAP, bugs"> <TITLE>Fetchmail Bugs and To-Do Items</TITLE> </HEAD> <BODY> <table width="100%" cellpadding=0><tr> <td width="30%">Back to <a href="/~esr">Eric's Home Page</a> <td width="30%" align=center>Up to <a href="/~esr/sitemap.html">Site Map</a> <td width="30%" align=right>$Date: 2001/08/10 16:07:02 $ </table> <HR> <H1 ALIGN=CENTER>Fetchmail Bugs and To-Do Items</H1> <p>I try to respond to urgent bug reports in a timely way. But fetchmail is now pretty mature and I have many other projects, so I don't personally chase obscure or marginal problems. Help with any of these will be cheerfully accepted. <p>Using LMTP alias with a local name that is not a full name fails horribly (the LMTP port never gets stripped off the name). <p>The UIDL code seems rather broken. It's a nasty swamp. Somebody who actually uses it should fix it -- every time I try I seem to make things worse.... <p>POP3 can't presently distinguish a wedged or down server from an authentication failure. Possible fix: after issuing a PASS command. wait 300 (xx) seconds for a "-ERR" or a "+OK" . If nothing comes back, retry at the next poll event and generate no errors. If we get an -ERR then log an authentication failure. <p>SMTP authentication a la RFC 2554 ought to be supported. The Exim reference has a <a href="http://www.exim.org/exim-html-3.10/doc/html/spec_33.html#SEC705"> whole chapter on this topic</a>. <p>It has been reported that multidrop name matching fails when the name to be matched contains a Latin-1 umlaut. Dollars to doughnuts this is some kind of character sign-extension problem. Trouble is, it's very likely in the BIND libraries. Someone should go in with a debugger and check this. <p>In the SSL support, add authentication of Certifying Authority (Is this a Certifying Authority we recognize?). <p>Laszlo Vecsey writes: "I believe qmail uses a technique of writing temporary files to nfs, and then moving them into place to ensure that they're written. Actually a hardlink is made to the temporary file and the destination name in a new directory, then the first one is unlinked.. maybe a combination of this will help with the fetchmail lock file." <p>Move everything to using service strings rather that port numbers, so we can get rid of ENABLE_INET6 everywhere but in SockOpen (this will get rid of the kluge in rcfile_y.y). <p>The <a href="http://bugs.debian.org/cgi-bin/pkgreport.cgi?pkg=fetchmail&archive=no">Debian bug-tracking page for fetchmail</a> lists other bug reports. <HR> <table width="100%" cellpadding=0><tr> <td width="30%">Back to <a href="/~esr">Eric's Home Page</a> <td width="30%" align=center>Up to <a href="/~esr/sitemap.html">Site Map</a> <td width="30%" align=right>$Date: 2001/08/10 16:07:02 $ </table> <P><ADDRESS>Eric S. Raymond <A HREF="mailto:esr@thyrsus.com"><esr@thyrsus.com></A></ADDRESS> </BODY> </HTML>