Hello Together Please i have a lot of this messages, exist here any possibilities to ban this ip or host, so this will try every view min.
Oct 16 12:33:59 mail postfix/smtpd[23436]: warning: hostname walkerj235.com does not resolve to address 91.200.12.56 Oct 16 12:34:03 mail postfix/smtpd[23436]: warning: unknown[91.200.12.56]: SASL LOGIN authentication failed: ZuFzc3waA31Zb Oct 16 12:38:06 mail postfix/smtpd[20167]: warning: hostname walkerj235.com does not resolve to address 91.200.12.56 Oct 16 12:38:08 mail postfix/smtpd[20167]: warning: unknown[91.200.12.56]: SASL LOGIN authentication failed: ZuFzc3waA31Zb Oct 16 12:42:16 mail postfix/smtpd[27854]: warning: hostname walkerj235.com does not resolve to address 91.200.12.56 Oct 16 12:42:20 mail postfix/smtpd[27854]: warning: unknown[91.200.12.56]: SASL LOGIN authentication failed: ZuFzc3waA31Zb Oct 16 12:44:12 mail postfix/smtpd[11374]: warning: unknown[80.82.77.153]: SASL LOGIN authentication failed: ZuFzc3waA31Zb Oct 16 12:46:28 mail postfix/smtpd[30250]: warning: hostname walkerj235.com does not resolve to address 91.200.12.56 Oct 16 12:46:31 mail postfix/smtpd[30250]: warning: unknown[91.200.12.56]: SASL LOGIN authentication failed: ZuFzc3waA31Zb Oct 16 12:47:46 mail postfix/smtpd[30250]: warning: unknown[191.96.249.214]: SASL LOGIN authentication failed: ZuFzc3waA31Zb Oct 16 12:50:46 mail postfix/smtpd[1148]: warning: hostname walkerj235.com does not resolve to address 91.200.12.56 Thanks for any help Reards Mauri
