In this third part of a four-part series on securing sendmail you will learn about the aliases file and we will turn our attention from security problems to security features. This article is excerpted from chapter four of em sendmail fourth edition em written by Bryan Costales Claus Assmann George Jansen and Gregory Shapiro O Reilly 2 7 ISBN 59651 292 . Copyright 2 7 O Reilly Media Inc. All rights reserved. Used with permission from the publisher. Available from booksellers or direct from O Reilly Media….
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