Re: so many warnings, are these spams?

2016-10-14 Thread vod vos 
There still many many logs in /var/log/mail.log



How can I eliminate or ignore this kind of logs if doing this do not harm mail 
server?




 On 星期四, 13 十月 2016 00:02:45 -0700Benny Pedersen m...@junc.eu wrote 





On 2016-10-13 08:30, vod vos wrote: 

 

 Oct 12 14:38:50 postfix/smtpd[1877]: warning: hostname 

 4d1q192.urbanchipps.net does not resolve to address 104.200.137.192: 

 Name or service not known 

 

 are these spams, how can I do? thanks. 

 

no its more just a badly configured mailserver that have not performed 

fully qualified dns reverse name for that ip 

 

basic: 

 

host ip 

dig ptr 

 

does not match same ip vs ptr 

 

and you cant do anything to it

Re: so many warnings, are these spams?

2016-10-13 Thread Benny Pedersen 

On 2016-10-13 08:30, vod vos wrote:


Oct 12 14:38:50 postfix/smtpd[1877]: warning: hostname
4d1q192.urbanchipps.net does not resolve to address 104.200.137.192:
Name or service not known



are these spams, how can I do? thanks.


no its more just a badly configured mailserver that have not performed 
fully qualified dns reverse name for that ip


basic:

host 
dig 

does not match same ip vs ptr

and you cant do anything to it

so many warnings, are these spams?

2016-10-13 Thread vod vos 
Hello guys,



when I cat /var/log/mail.log | grep warn

It shows



Oct 12 14:20:55 postfix/smtpd[2431]: warning: hostname 
static-bbs-74-184-3-210-on-nets.com does not resolve to address 210.3.184.74: 
Name or service not known

Oct 12 14:38:50 postfix/smtpd[1877]: warning: hostname 4d1q192.urbanchipps.net 
does not resolve to address 104.200.137.192: Name or service not known



and many many of such logs.



are these spams, how can I do? thanks.


sincerely yours