Entradas desconhecidas do sendmail no logfile

Question

Acabei de receber um monte de lixo eletrônico para capturar toda a caixa de correio. Eu olhei para os logs do servidor e posso ver abaixo. Não sou especialista em sendmail , a retransmissão está desativada, mas não entendo o que eles significam.

Oct 1 12:26:40 bookingwidget sendmail[27713]: s91CQdhW027713: from=<>, size=48016, class=0, nrcpts=1, msgid=<[email protected]>, proto=ESMTP, daemon=MTA, relay=[204.17.255.34]
Oct 1 12:26:40 bookingwidget sendmail[27715]: s91CQdhW027713: to=<[email protected]>, delay=00:00:01, xdelay=00:00:00, mailer=local, pri=78214, dsn=2.0.0, stat=Sent
Oct 1 12:26:40 bookingwidget sendmail[27714]: s91CQdJY027714: from=<>, size=48012, class=0, nrcpts=1, msgid=<[email protected]>, proto=ESMTP, daemon=MTA, relay=[204.17.255.34]
Oct 1 12:26:40 bookingwidget sendmail[27717]: s91CQdJY027714: to=<[email protected]>, delay=00:00:01, xdelay=00:00:00, mailer=local, pri=78210, dsn=2.0.0, stat=Sent
Oct 1 12:26:42 bookingwidget sendmail[27719]: s91CQfSs027719: from=<>, size=50102, class=0, nrcpts=1, msgid=<[email protected]>, proto=ESMTP, daemon=MTA, relay=mail.oceanscientific.co.uk [217.45.154.122]
Oct 1 12:26:43 bookingwidget sendmail[27720]: s91CQfSs027719: to=<[email protected]>, delay=00:00:01, xdelay=00:00:01, mailer=local, pri=80324, dsn=2.0.0, stat=Sent
Oct 1 12:26:43 bookingwidget sendmail[27722]: s91CQhwv027722: from=<>, size=0, class=0, nrcpts=1, proto=SMTP, daemon=MTA, relay=mx13.mail.eu.clara.net [81.171.239.23]
Oct 1 12:26:44 bookingwidget sendmail[27723]: s91CQhpC027723: from=<>, size=3536, class=0, nrcpts=1, msgid=<[email protected]>, proto=ESMTP, daemon=MTA, relay=mr3.devon.gov.uk [159.15.129.83]
Oct 1 12:26:44 bookingwidget sendmail[27724]: s91CQhpC027723: to=<[email protected]>, delay=00:00:00, xdelay=00:00:00, mailer=local, pri=33740, dsn=2.0.0, stat=Sent
Oct 1 12:26:45 bookingwidget sendmail[27726]: s91CQjdC027726: from=<>, size=0, class=0, nrcpts=1, proto=SMTP, daemon=MTA, relay=smtpa.scotland.net [194.247.64.1]
Oct 1 12:26:45 bookingwidget sendmail[27727]: s91CQjWU027727: from=<>, size=6107, class=0, nrcpts=1, msgid=<[email protected]>, proto=ESMTP, daemon=MTA, relay=gateway.necgroup.co.uk [213.86.71.240]
Oct 1 12:26:45 bookingwidget sendmail[27728]: s91CQjWU027727: to=<[email protected]>, delay=00:00:00, xdelay=00:00:00, mailer=local, pri=36321, dsn=2.0.0, stat=Sent
Oct 1 12:26:46 bookingwidget sendmail[27730]: s91CQkvC027730: from=<>, size=705, class=0, nrcpts=1, msgid=<[email protected]>, proto=ESMTP, daemon=MTA, relay=chicken.scotland.net [194.247.64.31]
Oct 1 12:26:46 bookingwidget sendmail[27731]: s91CQkvC027730: to=<[email protected]>, delay=00:00:00, xdelay=00:00:00, mailer=local, pri=30915, dsn=2.0.0, stat=Sent
Oct 1 12:26:46 bookingwidget sendmail[27732]: s91CQkwh027732: from=<>, size=51603, class=0, nrcpts=1, msgid=<[email protected]>, proto=SMTP, daemon=MTA, relay=mx2.ipfin.co.uk [62.60.9.99]
Oct 1 12:26:46 bookingwidget sendmail[27734]: s91CQkwh027732: to=<[email protected]>, delay=00:00:00, xdelay=00:00:00, mailer=local, pri=81828, dsn=2.0.0, stat=Sent
Oct 1 12:26:46 bookingwidget sendmail[27736]: s91CQkn6027736: from=<>, size=53352, class=0, nrcpts=1, msgid=<[e-mail]>, proto=ESMTP, daemon=MTA, relay=mail-db3on0061.outbound.protection.outlook.com [157.55.234.61]
Oct 1 12:26:46 bookingwidget sendmail[27739]: s91CQkWi027739: from=<>, size=725, class=0, nrcpts=1, msgid=<[email protected]>, proto=ESMTP, daemon=MTA, relay=chicken.scotland.net [194.247.64.31]
Oct 1 12:26:46 bookingwidget sendmail[27740]: s91CQkWi027739: to=<[email protected]>, delay=00:00:00, xdelay=00:00:00, mailer=local, pri=30935, dsn=2.0.0, stat=Sent
Oct 1 12:26:46 bookingwidget sendmail[27742]: s91CQkBv027742: from=<>, size=3472, class=0, nrcpts=1, msgid=<[e-mail]>, proto=ESMTP, daemon=MTA, relay=mail-db3on0058.outbound.protection.outlook.com [157.55.234.58]

    

Answer 1

Essas mensagens são "rejeições". Eles geralmente são causados por outra pessoa enviando um e-mail para um de seus usuários e, quando o e-mail não pode ser entregue, o servidor de e-mail gerará uma mensagem devolvida. Você pode informá-los de mensagens regulares, pois as mensagens devolvidas sempre têm o remetente do envelope <> .

Nesse caso, parece que a mensagem original tinha o remetente do envelope <[email protected]> e, portanto, seu servidor de e-mail está tentando entregar informações sobre a mensagem com falha para esse endereço.

Você precisará examinar uma das mensagens reais para descobrir qual era a mensagem original e por que ela não pôde ser entregue.