Hi all, this question is about Sendmail, but I hope someone will explain me: I've this in my logwatch: ----- Unknown users: celmacc@xxxxxx from fangio.interac.it [212.183.164.43] 1 time(s). from vsmtp4.tin.it [212.216.176.224] 1 time(s). Relaying denied: From [218.79.219.187] to diamondmktg@xxxxxxxxxxx: 1 Times(s) ----- and in maillog: ----- Dec 19 09:35:59 cmh sendmail[23385]: hBJ8Zxil023385: <celmacc@xxxxxx>... User unknown Dec 19 09:35:59 cmh sendmail[23385]: hBJ8Zxil023385: from=<parkhotel.pn@xxxxxx>, size=487737, class=0, nrcpts=0, proto=ESMTP, daemon=MTA, relay=vsmtp4.tin.it [212.216.176.224] (snip) Dec 19 10:56:39 cmh sendmail[25855]: hBJ9udil025855: <celmacc@xxxxxx>... User unknown Dec 19 10:56:39 cmh sendmail[25855]: hBJ9udil025855: from=<direzione@xxxxxxxxxxxxx>, size=0, class=0, nrcpts=0, proto=SMTP, daemon=MTA, relay=fangio.interac.it [212.183.164.43] ----- Celmacc is not a user in my domain and logwatch is reporting this, but how should I read the maillog part? As far as I understand this is a sender log but the number of receipients is always zero, and in one case the size is zero too. Should I take any action? Thanks, Carlo -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list