***** Important notes on sendmail 8.9.2 **** 1) Sendmail now always uses TCP wrappers (/etc/hosts.allow /etc/hosts.deny) This is a change from prior versions where wrapper support was enabled via sendmail.mc. Please make sure you add the appropriate entry to the /etc/hosts.* file. The most likely candidate is to place sendmail: all in /etc/hosts.allow 2) You should *really* read RELEASE_NOTES... There are *many* changes for spam control. A) Relaying is, by default, prohibitted B) Mail from non-resolvable domains is, by default, prohibitted **** Other information **** This Debian package includes an automatic configuration utility `sendmailconfig' which can be run at any time to modify the current sendmail configuration. Most mail-related configuration files are kept in the /etc/mail directory. Specialized configurations can be accomplished by editing the file /etc/mail/sendmail.mc by hand and then running `sendmailconfig' to generate and use the appropriate corresponding sendmail.cf file. Such configurations can make use of the m4 configuration macros kept in the /usr/share/sendmail/sendmail.cf directory. See also the other documentation in this directory. Finally, the file /etc/aliases holds a text representation of the current mail aliases. See the aliases(5) man page for more information. If you edit this file, be sure to run `newaliases' to update the corresponding binary database.