Re: Failed to open connection to SMTP server

check if there are error message, possibly you have bad configuration in 
files of sendmail.

hailong.li wrote:

>Hi Roberto,
>Thank you very much for your message!
>I checked from other computer, the SMTP port 25 is open.
>After I restart sendmail, it could send mail out. Later on
>it stopped again, I need to start sendmail again....
>Hailong
>
>
>
>check if you have activated iptables , desactivate iptable
>  
>
>>in setup  command or /etc/rc.d/init.d/iptables stop and
>>probe if can sent  mail....also check port side out you
>>computer from other pc...
>>
>>hailong.li wrote:
>>
>>    
>>
>>>Hi there,
>>>My OS is redhat linux 7.2. When I tried to send email out
>>>with webmail, it could not, and I got " Failed to open
>>>connection to SMTP server {NULL}". I checked the port
>>>      
>>>
>>SMTP >25, it is open.
>>    
>>
>>>Any suggestion will be appreciated!
>>>Hailong
>>>
>>>Hailong Li
>>>System Analyst/Programmer
>>>Office of Information Technology
>>>Jackson State University
>>>phone: (601)979-1090
>>>email: [email protected]
>>>
>>>
>>>_______________________________________________
>>>enigma-list mailing list
>>>[email protected]
>>>https://www.redhat.com/mailman/listinfo/enigma-list
>>>
>>>
>>>      
>>>
>>_______________________________________________
>>enigma-list mailing list
>>[email protected]
>>https://www.redhat.com/mailman/listinfo/enigma-list
>>    
>>
>
>
>_______________________________________________
>enigma-list mailing list
>[email protected]
>https://www.redhat.com/mailman/listinfo/enigma-list
>  
>