[hypermail] HM_DISCARD_DUP_MSGIDS

This might be an old question, but I didn't follow the discussions on this list too closely recently. I just upgraded to 2.1.2, and the problem I had with my old version (ashamed to say how old :-)) persists: I am setting the value of the environment variable HM_DISCARD_DUP_MSGIDS to zero (using export command of zsh), expecting messages with duplicate message ids will not be discarded. However, I get

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  4047: Message-ID collision, '00f301c0cc1d$1bcb4c80$9cfdb5d8_at_default' already present - discarding message.
48: Message-ID collision, 'F34456UnHAaaz7EjQxz0000bd46_at_hotmail.com' already present - discarding message.
5055: Message-ID collision, '14sSdx-2Kf6DBC_at_fwd06.sul.t-online.com' already present - discarding message.
55: Message-ID collision, '38e57c38eab6.38eab638e57c_at_homemail.nyu.edu' already present - discarding message.
77 messages.
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So, the variable preset does not work. Is it not functioning? I am not using a configuration file so I didn't tried other methods of configuring this option.

Cheers,

Zvi.

-- 
Dr. Zvi Har'El     mailto:rl_at_math.technion.ac.il     Department of Mathematics
tel:+972-54-227607                   Technion - Israel Institute of Technology
fax:+972-4-8324654 http://www.math.technion.ac.il/~rl/     Haifa 32000, ISRAEL
"If you can't say somethin' nice, don't say nothin' at all." -- Thumper (1942)
                                Saturday, 3 Tammuz 5761, 23 June 2001,  8:04PM