The ssmtp package is a lightweight SMTP agent for systems which don't need a full blown MTA. These log entries are for successful connections which don't need to fill up the logcheck reports. Here's the relevant log entries to be ignored: Mar 6 22:02:09 tiny sSMTP[11122]: Creating SSL connection to host Mar 6 22:02:10 tiny sSMTP[11122]: SSL connection using DHE-RSA-AES256-SHA Mar 6 22:02:12 tiny sSMTP[11122]: Sent mail for logcheck at removed.com (221 2.0.0 smtp.removed.com closing connection) uid=115 username=logcheck outbytes=1429 Here are my rules: ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ sSMTP\[[0-9]+\]: Creating SSL connection to host$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ sSMTP\[[0-9]+\]: SSL connection using [-[:alnum:]]+$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ sSMTP\[[0-9]+\]: Sent mail for +*$ Thanks, Jonathan Skanes