[Mailman-Users] Letters

Nigel Metheringham Nigel.Metheringham at dev.InTechnology.co.uk
Fri May 16 10:20:16 CEST 2003

On Fri, 2003-05-16 at 00:03, mail at realwebhost.net wrote:
> Using cpanel with mailman. We have some users that have large list. Some of which get hung up in the mail q.
> When we view them in the mail q we email address's of the people on the list to the left of their address we see these letters.
> NN
> NY
> YN
> YY
> What do they mean?

If these are in the mail queue then this is not a Mailman question, but
a question relating to your MTA.  In this case it looks like you are
using exim, and the information on the format of the spool files can be
found at

The short answer is that the list of addresses you see is the list of
addresses *not* to be delivered to (this may mean they have already been
delivered to), and the Y/N encoding shows how they are arranged in the
balanced binary tree data structure.

[ Nigel Metheringham           Nigel.Metheringham at InTechnology.co.uk ]
[ - Comments in this message are my own and not ITO opinion/policy - ]

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