> I am looking for the best way to "tune" a list using error handling and > probing. See the paper I wrote on this a few years back: http://www.lsoft.com/news/techtipLSV-issue1-2006-us.asp > I have 26 Lists that have 65'000+ users in them, there is no error > checking or probing implemented, whenever one of these Lists are used it > just drags the list server down. > > The client has concerns that if the Auto-Delete feature is used a > legitimate email address may be removed, but now performance is > impacted, If you're delivering to 65,000 addresses and not removing the invalid ones, it's likely that your delivery to legitimate addresses is already impacted. Many service providers use your invalid delivery attempts as part of their spam scoring (because spammers don't clean their address lists, either), which means that all of those attempts to deliver to invalid addresses increase the odds that the valid ones end up in the spam folder instead of the inbox. If you've never cleaned up your address lists, this is probably already happening, and it will get worse over time. -- Liam Kelly Senior Consulting Analyst L-Soft international [log in to unmask] L-Soft wishes you a Happy 2013 http://www.lsoft.com/happy2013.html ############################ To unsubscribe from the LSTSRV-L list: write to: mailto:[log in to unmask] or click the following link: http://peach.ease.lsoft.com/scripts/wa-PEACH.exe?SUBED1=LSTSRV-L&A=1