couldn't find any host named

[chiuhong]

Hi,
Anyone has experienced on "couldn't find any host named" as below:

Hi. This is the qmail-send program at ms.evershining.com.
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.

<billcheung@xxxx.com>:
Sorry, I couldn't find any host named xxxx.com. (#5.1.2)

However, it works well after send again !!! it happened only sometimes. Any patches I missing, I am using netqmail-1.05 and followed instruction of Life with qmail.

Thanks

 

[chiuhong]

Of course I did checked as below points:

1. Check for typos after the @ symbol.
2. No spaces should exist between the 'less than' and 'greater than' symbols. <>
3.Hyphens and dots are allowed as special characters after @. - .
3. Was the correct top level domain used? .com, .net, .org, etc.
4. The domain has expired or no longer valid.

none of above.

Thanks

 

[thedaver]

I'm guessing that one of your resolving DNS servers is not online or is unable to respond quickly with the needed results.

D.E.R. Management - IT Project Management Consulting

http://www.dermanagement.com/

 

[chiuhong]

So that mean I have to look for a stable DNS IP for /etc/resolv.conf in the Linux server? Do you have any suggestion which DNS IP is most stable?


Thanks

 

[thedaver]

Your ISP is a good place to look?! It might just be a temporary outage. Perhaps reversing the order of IPs in resolv.conf will help? You should always have at least two entries

D.E.R. Management - IT Project Management Consulting

http://www.dermanagement.com/