Tomasz Nidecki <[EMAIL PROTECTED]> writes: > I was wondering whether any of you is using TMDA in large-scale > installations with qmail and vpopmail/vmailmgr. I might be setting > up a free email account server for thousands of users [at least] and > I'm wondering whether it might cause a problem if I set up TMDA > there for users [so they can turn it on/off via web] as one of the > forms of spam protection. Will it consume a lot of resources? What > are your experiences and do you have any suggestions for such a > setup?
Here are some large installations I'm aware of, thought I'm probably forgetting some: * Actrix Networks, the largest ISP in New Zealand has provided some preliminary statistics[1] on their TMDA usage. * mail.gnu.org, which handles the Free Software Foundation's mailing lists sends a few thousand[2] messages per day though TMDA. * Gmane runs a TMDA service[3] which sees lots of use periodically. For example, it handled 6GB worth of messages this past weekend. There are some other TMDA providers listed at http://tmda.net/inuse.html, though I don't know how many of those qualify has ``large-scale''. That list also isn't comprehensive since most sites don't bother with being listed there. I don't see resource consumption being a problem for a few thousand users, espeically given how cheap hardware is these days. Allot depends on how you've tuned your TMDA configuration. There are things I definately would and wouldn't use were I desgining a large TMDA installation. Also the defenses you are using in front of TMDA will make a big difference. e.g, virus scanning and reasonable SMTP-level spam reduction will make TMDA's life much easier. Even using a content filter like spamassasin might be something to consider. Footnotes: [1] http://mla.libertine.org/tmda-users/2003-08/msg00085.html [2] http://mla.libertine.org/tmda-workers/2003-07/msg00025.html [3] http://gmane.org/tmda.php _____________________________________________ tmda-users mailing list ([EMAIL PROTECTED]) http://tmda.net/lists/listinfo/tmda-users
