Source: http://www.shelldorado.com/articles/mailattachments.html
$ mutt -s “Birthday celebration” -a citymap.jpg all@friends.org < invitation.txt
$ mutt -a syslogs.tar.gz admin@domain.org < /dev/null
$ echo | mutt -a syslogs.tar.gz admin@domain.org
Hao's Blog 
Is there a way in which I can obtain the proxy stuff you have written?
What proxy stuff?