Tomas Macek: > The part of the log is here: > > Oct 11 12:26:44 mail postfix/smtpd[4546]: < my.pc.host.name[x.x.x.x]: RSET > Oct 11 12:26:44 mail postfix/smtpd[4546]: > my.pc.host.name[x.x.x.]: 250 > 2.0.0 Ok > Oct 11 12:26:44 mail postfix/smtpd[4546]: > my.pc.host.name[x.x.x.x]: 421 > 4.7.0 our.server.name Error: too many errors
Postfix does not allow clients to send an unlimited number of commands like NOOP or RSET. The default setting is: smtpd_junk_command_limit = ${stress?1}${stress:100} This means: under server overload conditions, Postfix will immediately disconnect a client that sends commands like NOOP or RSET, instead of sending mail. > Oct 11 12:26:44 mail postfix/smtpd[4546]: too many errors after RSET from > my.pc.host.name[x.x.x.x] > > The "postconf smtpd_hard_error_limit" output: > smtpd_hard_error_limit = ${stress?1}${stress:20} What was the effective hard error limit: 1 or 20? Look at the output from: $ grep STRESS the-maillog-file Wietse