Sometime Today, AK cobbled together some glyphs to say:
Most mailing lists do not send the message to the originator, presumably since you already have a copy in your 'sent' box.
It's configurable in mailman. Can be set from your preferences page. Log in at http://mm.ilug-bom.org.in/mailman/listinfo/linuxers
Gmail shows incoming and outgoing mails in the same thread, so it's hard to know what is in your inbox and what is in your sent box.