66 Mail three pictures, and he picked the bat because it appealed to him the most. The fun answer is that, although sendmail has a reputation for being scary, like a bat, it is really a rather friendly and intelligent beast. Friendly and intelligent? Feh. I can come up with tons of better answers to that one. Especially because it’s so patently wrong. To wit: The common North American brown bat’s diet is composed princi- pally of bugs. Sendmail is a software package which is composed principally of bugs. Sendmail and bats both suck. Sendmail maintainers and bats both tend to be nocturnal creatures, making “eep eep” noises which are incomprehensible to the average person. Have you ever watched a bat fly? Have you ever watched Sendmail process a queue full of undelivered mail? QED. Sendmail and bats both die quickly when kept in captivity. Bat guano is a good source of potassium nitrate, a principal ingredi- ent in things that blow up in your face. Like Sendmail. Both bats and sendmail are held in low esteem by the general public. Bats require magical rituals involving crosses and garlic to get them to do what you want. Sendmail likewise requires mystical incanta- tions such as: R$+$*$=Y$~A$* $:$1$2$3?$4$5 Mark user portion. R$+$*!$+,$*?$+ $1$2!$3!$4?$5 is inferior to @ R$+$+,$*?$+ $1$2:$3?$4 Change src rte to % path R$+:$+ $1,$2 Change % to @ for immed. domain R$=X$-.UUCP!?$+ $@$1$2.UUCP!$3 Return UUCP R$=X$-!?$+ $@$1$2!$3 Return unqualified R$+$+?$+ $1$2$3 Remove '?' R$+.$+$=Y$+ $@$1.$2,$4 Change do user@domain
Subject: Returned Mail: User Unknown 67 Farmers consider bats their friends because of the insects they eat. Farmers consider Sendmail their friend because it gets more college- educated people interested in subsistence farming as a career. I could go on and on, but I think you get the idea. Stay tuned for the .22 penetration test results! —Rob Subject: Returned Mail: User Unknown A mail system must perform the following relatively simple tasks each time it receives a message in order to deliver that message to the intended reciepient: 1. Figure out which part of the message is the address and which part is the body. 2. Decompose the address into two parts: a name and a host (much as the U.S. Postal System decomposes addresses into a name, a street+number, and town+state.) 3. If the destination host isn’t you, send the message to the specified host.
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