fixing spamstop

After the release of DoubleBackup,
I’ve realized that SpamStop servers must be fixed.

Actually each customer receives a custom-made server,
it requires a long setup and it’s not possible to “recycle” it after the use.

RealSender and DoubleBackup servers are standard and independent.
Each of them is an investment, that won’t disappear even if the customer decides to close its account.

This is the target for the next week.
It’s a necessary step to harmonize the offer and take it to an industrial level.