Here we are going to assemble the various items of Procmail capability into a few useful recipes that we can use as the basis for tools within our own organization. The first example is based on the traditional Vacation recipe that informs senders of the e-mail that may not be read by the recipient for some time. The second shows how to create the support to automatically file messages based on the date and the possible time of being processed. Finally, we will complete the rule started in the previous chapter to inform the user of large mail items that have been filtered into a separate folder.
This example is based upon the vacation example given in man procmailex and referred to briefly earlier in this chapter.
As we have already discussed, blindly and automatically responding to an e-mail is a very bad idea and has significant ramifications. First we must decide whether to send an auto reply. To do this, we need to make sure that conditions...