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"connect from localhost" messages in the log

From: Reggie Sniff (rsniffamllc.com)
Date: Tue Jan 09 2007 - 23:59:59 CST


Can anybody suggest as to why we get these regular connections? I can't
figure out where they are coming from...
We aren't running any other mail processes other than postfix, so I cannot
figure what is connecting g line this.

Jan 8 07:12:26 rp1 postfix/smtpd[9504]: connect from localhost[127.0.0.1]
Jan 8 07:12:26 rp1 postfix/smtpd[9504]: lost connection after CONNECT from
localhost[127.0.0.1]
Jan 8 07:12:26 rp1 postfix/smtpd[9504]: disconnect from
localhost[127.0.0.1]

When I try
# telnet localhost 25

The logging is somewhat different as it now includes ".localdomain":
Jan 9 22:57:18 rp1 postfix/smtpd[7523]: connect from
localhost.localdomain[127.0.0.1]
Jan 9 22:57:20 rp1 postfix/smtpd[7523]: disconnect from
localhost.localdomain[127.0.0.1]

Thanks,

Reggie