[ubuntu-za] Thunderbind resolveip issue

[Charl Wentzel]

Hi Guys

I've been noticing an strange issue and found an accidental band-aid, 
but I'm baffled.

Recently I found regular issues with Thurderbird failing to connect to 
SMTP servers when send emails.  After repeated tries the emails simply 
didn't want to go through.  The problem progressively got worse.  At 
first I simply saved the email as draft then opened it again and it 
would send it.  Later when that didn't work I would close and re-open 
Thunderbird and send it.

When that failed I considered that there was something wrong with the 
server and tried "resolveip smtp.vodamail.co.za" on the command line, 
which instantly resolved the IP address. Furthermore, immediately after 
executing the command Thunderbird would connect and send the email!

Although it mostly occurs on a specific email address, it sometimes 
occurs on another as well.

So it appears there is a strange resolve / DNS issue, but I don't get it:
- I'm not having issues with any other applications, e.g. Chrome 
continues to work normally while having this issue
- I have multiple email addresses on Thunderbird, and when one email 
address is giving this issue, the others don't.

Doesn't all applications use the same operating system mechanism for DNS 
queries?

Any ideas?

Regards
Charl
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