I'm getting this block of log entries in my msg.log four or
        five times an hour. Always the same account. Different URLs,
        though.
         
      18 19:19:37[0] burst 66.87.97.178 . <
uname@rsimpson.xx>
        0 . "burst u53137~2,SR(0,38341)[1473367077] -->
        u53137~2,S(0,38341)[1473367077]"
        18 19:19:37[0] burst 66.87.97.178 . <
uname@rsimpson.xx>
        0 . "burst u53133~2,SR(0,86403)[1473777498] -->
        u53133~2,S(0,86403)[1473777498]"
        18 19:19:37[0] burst 66.87.97.178 . <
uname@rsimpson.co>
        0 . "burst u53134~2,SR(0,86395)[1473615534] -->
        u53134~2,S(0,86395)[1473615534]"
        18 19:19:37[0] burst 66.87.97.178 . <
uname@rsimpson.co>
        0 . "burst u53135~2,SR(0,13354)[1473508946] -->
        u53135~2,S(0,13354)[1473508946]"
        18 19:19:37[0] burst 66.87.97.178 . <
uname@rsimpson.co>
        0 . "burst u53141~2,SR(0,33173)[1473745931] -->
        u53141~2,S(0,33173)[1473745931]"
        18 19:19:37[0] burst 66.87.97.178 . <
uname@rsimpson.co>
        0 . "burst u53132~2,SR(0,19164)[1473459539] -->
        u53132~2,S(0,19164)[1473459539]"
        18 19:19:37[0] burst 66.87.97.178 . <
uname@rsimpson.co>
        0 . "burst u53140~2,SR(0,11958)[1473689936] -->
        u53140~2,S(0,11958)[1473689936]"
        18 19:19:37[0] burst 66.87.97.178 . <
uname@rsimpson.co>
        0 . "burst u53139~2,SR(0,49964)[1473424697] -->
        u53139~2,S(0,49964)[1473424697]"
        18 19:19:37[0] burst 66.87.97.178 . <
uname@rsimpson.co>
        0 . "burst u53138~2,SR(0,31320)[1474004332] -->
        u53138~2,S(0,31320)[1474004332]"
        18 19:19:37[0] burst 66.87.97.178 . <
uname@rsimpson.co>
        0 . "burst u53131~2,SR(0,86555)[1473706860] -->
        u53131~2,S(0,86555)[1473706860]"