Dave Emory wrote: > Hello, All. > > I did some testing of the IP address number-of-connections limit function, > and found a behavior that you should be aware of if you use this function. > The mailer I used to send the test messages makes a new connection for each > email address in the "from" field. If the number of recipients in the from > field exceeds the max SMTP ip connections limit, the IP address will be > blocked and get a PB score (if enabled). Blocking starts as soon as the > limit is exceeded, so some mail will not be delivered. I reduced the > frequency test duration due to this issue so the function still helps > prevent denial-of-service, but mail isn't blocked for the default 3600 > seconds.
Thats a pretty shitty MTA if you ask me. Most MTAs I've seen will re-use the connection for multiple messages. Sounds more like a script thats sending out messages directly to me. Kevin ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Assp-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/assp-user
