Sorry, but I'm going mad with this mailing list, I send a message and sometimes it arrives and sometimes no, why?

I have the following packages:
bash,bzip2,coreutils,diffutils,findutils,grep,tar,bluez,boa,bonjour,dropbear,
hotplug,less,libsysfs,lrzsz,module-init-tools,mtd/jffs2 utilities,pcmciautils,
pxaregs,udev,wifistix,wireless tools.


Thanks!