I emerged cyrus-imapd (tried 2.2.12 and 2.2.12-r1) on a Gentoo-2.6.11-hardened-r1 system. No errors during emerge. Connected with Postfix and Amavis. POP3-SSL, IMAP and IMAP-SSL protocols al work like a charm. Only POP3 is only accessible from localhost. This is reproduceble even when moving to another port (tried 12345). netstat -tnlp gives correct 0.0.0.0:110/0.0.0.0:* master listening, should be ok. I also tried to disable the firewall (Shorewall, configured to allow POP3(S)/IMAP(S) through standard scripts), that also doesn't work. Reproducible: Always Steps to Reproduce: 1. Emerge cyrus-imapd and cyrus-sasl 2. saslpasswd2 -c cyrus 3. Start cyrus-imapd 4. su - cyrus 5. cyradm --server=localhost --auth=plain 6. cm user.test 7. exit 8. telnet localhost 110 (this should work) 9. telnet your.server 110 (this should give the error, run from another machine) Actual Results: No connection to POP3 possible, only from localhost. POP3S, IMAP(S) all work perfectly well. Expected Results: Give access via POP3 even from other machines. Portage 2.0.51.19 (hardened/x86/2.6, gcc-3.3.5-20050130, glibc-2.3.4.20041102-r1, 2.6.11-hardened-r1 i686) ================================================================= System uname: 2.6.11-hardened-r1 i686 Intel(R) Pentium(R) 4 CPU 3.06GHz Gentoo Base System version 1.4.16 Python: dev-lang/python-2.3.4-r1 [2.3.4 (#1, Apr 8 2005, 13:49:18)] ccache version 2.3 [enabled] dev-lang/python: 2.3.4-r1 sys-devel/autoconf: 2.13, 2.59-r6 sys-devel/automake: 1.8.5-r3, 1.5, 1.7.9-r1, 1.6.3, 1.4_p6, 1.9.4 sys-devel/binutils: 2.15.92.0.2-r7 sys-devel/libtool: 1.5.14 virtual/os-headers: 2.6.8.1-r2 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CFLAGS="-O2 -march=pentium4 -fomit-frame-pointer -pipe -fstack-protector" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3/share/config /usr/share/config /var/bind /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-O2 -march=pentium4 -fomit-frame-pointer -pipe -fstack-protector" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs autoconfig ccache distlocks sandbox strict" GENTOO_MIRRORS="ftp://ftp.uni-erlangen.de/pub/mirrors/gentoo" MAKEOPTS="-j2" PKGDIR="/usr/portage//packages/x86/" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage/" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="apache2 berkdb crypt curl curlwrappers dba dlloader exif fastcgi ftp gd geoip gif gpm hal hardened imagemagick imap innodb ithreads java jikes jpeg junit kerberos krb4 ldap libwww mbox mime mmx mp3 mpeg mysql ncurses nls nptl nptlonly pam pcre pdflib perl php pic pie png posix prelude python readline sasl slang soap spl sse ssl svg svga symlink tcpd tidy tiff tokenizer truetype unicode userlocales vhosts wddx wmf x86 xml xml2 xmlrpc xsl zlib" Unset: ASFLAGS, CBUILD, CTARGET, LANG, LC_ALL, LDFLAGS, LINGUAS
This is some issue on your end as I run this precise setup with full pop / pops / imap / imaps with no problems at all. I would suggest double checking your firewall / packet dumping while trying the connection.
check if you've emerged cyrus-imapd with "tcpd" USE flag? You need to add pop3 to /etc/hosts.allow if you have. man 5 hosts.allow for usage. Please post your mail log show any error when you connect to your POP3 server along with `emerge cyrus-imapd -vp`
Thanks for your help and hints! After fiddeling around with all the stuff, I finally found that it must be a bug inside the Shorewall firewall scripts, that doesn't open port 110 even if asked to and not clearing all the firewall rules with 'shorewall stop' - instead a 'shorewall clear' did the magic. I'll file a bug with Shorewall. @Tuan Van: Cyrus is compiled with tcpd, but all works fine without a hosts.allow file. Sorry for wasting your time.
