, which provides commercial versions of the sendmail
program. Eric also provides support to the Sendmail Consortium.
The sendmail program has gained popularity mainly from its ability to be extremely
versatile. Many of the standard features of sendmail have become synonymous with email
systems??”virtual domains, message forwarding, user aliases, mail lists, and masquerading.
sendmail can be used for many different types of email configurations, such as large
corporate Internet email servers, small corporate servers that dial into ISPs, and even
stand-alone workstations that forward mail through a mail hub. Simply changing a few
lines in sendmail??™s configuration file can change its characteristics and behavior.
How Email Works 313
15
Besides being able to change its server characteristics, sendmail also has the ability to
parse and handle mail messages according to predefined rule sets. As the mail administrator,
it is often desirable to filter messages depending on particular mail requirements. To
do this, all that is needed are new rules added to the sendmail configuration file.
Pages:
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652