Thenx for replay: May 5 06:00:51 smtp1 postfix/smtpd[5939]: warning: Illegal address syntax from unknown[217.153.30.34] in RCPT command: <> May 5 06:00:51 smtp1 postfix/smtpd[6242]: warning: Illegal address syntax from unknown[217.153.30.34] in RCPT command: <> May 5 06:00:51 smtp1 postfix/smtpd[6240]: warning: Illegal address syntax from unknown[217.153.30.34] in RCPT command: <> May 5 06:00:51 smtp1 postfix/smtpd[5710]: warning: Illegal address syntax from unknown[217.153.30.34] in RCPT command: <> May 5 06:00:52 smtp1 postfix/submission/smtpd[6303]: warning: hostname zg-0428c-286.stretchoid.com does not resolve to address 162.243.138.183: Name or service not known May 5 06:00:52 smtp1 postfix/submission/smtpd[6319]: warning: hostname zg-0428c-286.stretchoid.com does not resolve to address 162.243.138.183: Name or service not known May 5 06:00:52 smtp1 postfix/smtps/smtpd[6194]: warning: hostname host66-188-252-69.limes.com.pl does not resolve to address 188.252.69.66: Name or service not known May 5 06:00:52 smtp1 postfix/smtpd[6240]: warning: unknown[45.143.223.91]: SASL LOGIN authentication failed: authentication failure May 5 06:00:53 smtp1 postfix/smtpd[6444]: warning: hostname net6-ip6.linkbg.com does not resolve to address 87.246.7.6: Name or service not known May 5 06:00:53 smtp1 postfix/submission/smtpd[6457]: warning: hostname zg-0428c-286.stretchoid.com does not resolve to address 162.243.138.183: Name or service not known May 5 06:00:53 smtp1 postfix/smtps/smtpd[6199]: warning: Illegal address syntax from static-81-219-84-50.devs.futuro.pl[81.219.84.50] in RCPT command: <'basia@[...].pl'> May 5 06:00:53 smtp1 postfix/smtpd[6240]: warning: unknown[89.111.132.76]: SASL LOGIN authentication failed: authentication failure May 5 06:00:53 smtp1 postfix/smtpd[6444]: warning: unknown[87.246.7.6]: SASL LOGIN authentication failed: authentication failure May 5 06:00:53 smtp1 postfix/smtps/smtpd[6197]: warning: SASL authentication failure: Password verification failed May 5 06:00:53 smtp1 postfix/smtps/smtpd[6197]: warning: 171-103-138-78.static.asianet.co.th[171.103.138.78]: SASL PLAIN authentication failed: authentication failure May 5 06:00:53 smtp1 postfix/submission/smtpd[6464]: warning: hostname zg-0428c-286.stretchoid.com does not resolve to address 162.243.138.183: Name or service not known May 5 06:00:54 smtp1 postfix/smtpd[6466]: warning: unknown[45.143.223.91]: SASL LOGIN authentication failed: authentication failure May 5 06:00:54 smtp1 postfix/smtps/smtpd[6199]: warning: Illegal address syntax from static-81-219-84-50.devs.futuro.pl[81.219.84.50] in RCPT command: <'biuro@[..].'> May 5 06:00:54 smtp1 postfix/smtps/smtpd[6471]: warning: hostname host66-188-252-69.limes.com.pl does not resolve to address 188.252.69.66: Name or service not known May 5 06:00:54 smtp1 postfix/smtps/smtpd[5897]: warning: Illegal address syntax from unknown[46.29.149.182] in RCPT command: <'anna.m@[...].pl'> May 5 06:00:54 smtp1 postfix/smtpd[6444]: warning: unknown[111.72.195.23]: SASL LOGIN authentication failed: authentication failure May 5 06:00:54 smtp1 postfix/submission/smtpd[6464]: warning: hostname zg-0428c-286.stretchoid.com does not resolve to address 162.243.138.183: Name or service not known
nothing else On 05.05.2020 19:40, Wietse Venema wrote: > natan maciej milaszewski: >> Hi >> I not found any errors: > RUN THE COMMAND DESCRIBED IN http://www.postfix.org/DEBUG_README.html#logging > > $ egrep '(warning|error|fatal|panic):' /some/log/file | more > > Wietse