* Add check against regexp from
http://www.regular-expressions.info/email.html
* Change documentation accordingly.
* Bump version number to 0.5
Fixes#11.
Signed-off-by: Thomas Hochstein <thh@inter.net>
- use strict;
- modularize code
- refactor application logic
- more verbose output
- test MXes in order of precedence
- cope with multi-line responses
- slightly change meaning of exit status
- batch processing: set exit status to highest generated value
Fixes#9.
Fixes#10.
Signed-off-by: Thomas Hochstein <thh@inter.net>