Hello I have been noticing, the following behavior on one of our mail servers which happens to be running spamdyke. The qmail incomingconcurrency setting is 500.
When tls-level is set to smtp, the number of timeouts increases and errors indicating unable to write to ssl/tls stream increases. the errors are I/O errors mostly Broken pipe, but some are Connection reset by peer. The effect I witness is increases in the smtp concurrency usage. In certain busy periods, it goes to the 450+ percent area. The MRTG graph indicates max/smtp, I didn't write the scan criteria. Setting the tls-level to none, decreases the concurrency and the errors diminish as well (less errors makes sense). Concurrency usage drops to below the 100 percent mark I guess I don't understand the methodology of enabling tls under smtp since I don't have port 995 open to the mailers. Needless to say, when the server reaches the max incomingconcurrency setting, users get shut out (temporarily). Anyone have any ideas? Best Greg _______________________________________________ spamdyke-users mailing list [email protected] http://www.spamdyke.org/mailman/listinfo/spamdyke-users
