On: Thu, Mar 03, 2011 at 12:42:31PM +0000,Eckard, Steve - eckardsl Wrote:

} Greetings, all. I have a new owner of a list which is an announce only list used very little, but has over 49000 subscribers. Mostly these have been the result, I believe, of someone putting a link on the website for the organization which makes it so easy to request subscription. Fortunately being an announce only list is not as easily compromised as an open. My question is how can this owner determine which of these subscribers are still active/valid? Would sending a message to the list result in delivery errors and deletion of unavailable accounts?

This assumes you have control of the list header.

You need to look up the "Auto-Delete=" header keyword.  Possible
settings:

  * Auto-Delete= Yes,Semi-Auto,Delay(X),Max(Y)

where X is a number of days long enough for a few issues, and Y is the
number of issues in X days (both +/- fudge factors).  Read the manual.
Strictest would be X=Y=1 which (I think) will boot a subscriber after a
single bounce.

--
Rich Greenberg  Sarasota, FL, USA richgr atsign panix.com  + 1 941 378 2097
Eastern time.  N6LRT  I speak for myself & my dogs only.    VM'er since CP-67
Canines: Val, Red, Shasta, Zero & Casey (At the bridge)        Owner:Chinook-L
Canines: Red & Cinnar (Siberians)  Retired at the beach  Asst Owner:Sibernet-L

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