The campaign's mail program can certainly be considered aggressive.
The documentation that comes with a new mail program may provide some tips.
The mail program would be open even before your mouse click finished.
The Book by mail program which started in 1977 is for the homebound.
They run independently of your mail program, though, so you have to remember to start them up.
A good direct mail programme will hold them together and bring their response.
And you do not have advertisements on your messages with a mail program.
A. The winmail.dat file usually appears because various mail programs handle message formats differently.
Some mail programs will also let you do a reverse-sort for items in a column.
It can also be run by individual users on their own mailbox and integrates with several mail programs.