ubuntu/linux: can't send email after upgrading to 12.04

[ping]

On 10/30/2012 04:41 PM, ping wrote:
> folks/experts:
>
> previously I had a really handy oneliner that works great for years:
> #put this in ~/bin/test.sh
> cat "$1" | uuencode "$1" | mail -s "file:$1, from ping's PC"
>
> then I can send any file as email attachment from CLI,  within my
> office, to any one.
>
> but after upgrading to ubuntu12.04LTS, I noticed this tool is broken now:
>
>     ping at 640g-laptop:~$ test.sh temp1.txt songpingemail at gmail.com
> 1) WARNING: gnome-keyring:: couldn't connect to:
> /tmp/keyring-Gjbkfb/pkcs11: No such file or directory
> 2) send-mail: 501 5.5.4 Invalid domain name (ping at redroute.com)
> 3) Can't send mail: sendmail process failed with error code 1
>
> I'm thinking this might involve 2 issues here:
>
> 1) this "gnome-keyring" warning I seems saw also on other places, that I
> previously never saw before upgrading.
> 2) ping at redroute.com is my default company mailbox, I think this is what
> sendmail use as the "sender"'s emailbox
> 3) I'm doubting some of my files related to sendmail was replaced during
> the upgrading, but I can't remember which files they are...
>
> does anyone experienced the same issue and found any workaround? I
> googled tons of links without seeing a clear clue...
> thanks!
>
>
> regards
> ping