Penny Venetian Red of "POSTAGE" and "ONE PENNY" that its predecessors bore. It was decided that a new colour would also be desirable to defend against improper re-use; a fugitive lilac ink was used that would run and spoil the stamp if one attempted to wash off the cancellation. The Lilacs broke the tradition of using corner letters and instead had either fourteen or sixteen dots in each corner. Penny Venetian Red The Penny Venetian Red was a British postage stamp equal to the value of one penny. Issued in 1880, it was designed and surface-printed by security printing company De La Rue.
Penny Black (research project) spammers. Using these methods to reduce spam will also require these policies to be universal amongst mail clients. Intended mass email may also not work as intended. For example, subscribers to a particular email service may end up getting their emails with a significant delay while the email service will also become an increased expenses to the provider. Penny Black (research project) The Penny Black Project is a Microsoft Research project that tries to find effective and practical ways of fighting spam. Because identifying spams consumes a recipient's time, the idea is to make the sender of emails "pay" a