On Sat, May 10, 2003 at 12:54:31PM -0700, Rigoberto de la Cruz wrote: > > I'm trying to configure sendmail and squirrelmail. > Sendmail's official website does not have a good > example on how to customize sendmail.mc Does anyone > know a good website where I can learn more about > sendmail? can someone send me their sendmail.mc as an > example? I want to know how to have a good sendmail > configuration that will try its best to not allow > spam.. Also, squirrel mail comes with redhat, but I do > know how to make it work. I get this info: > Hi Rigoberto, Here is an example sendmail.mc. It does not allow any external relaying. It uses a smarthost based at a Cable ISP for all mail routing. divert(-1) dnl This is the sendmail macro config file. If you make changes to this file, dnl you need the sendmail-cf rpm installed and then have to generate a dnl new /etc/sendmail.cf by running the following command: dnl dnl m4 /etc/mail/sendmail.mc > /etc/sendmail.cf dnl include(`/usr/share/sendmail-cf/m4/cf.m4') VERSIONID(`linux setup for Red Hat Linux')dnl OSTYPE(`linux') define(`confDEF_USER_ID',``8:12'')dnl dnl dnl use ATT smtp mail service for all mail dnl Remember to change this when ComCast finally dnl changes overthe mail service! dnl define(`SMART_HOST',`mail.attbi.com')dnl undefine(`UUCP_RELAY')dnl undefine(`BITNET_RELAY')dnl define(`confAUTO_REBUILD')dnl define(`confTO_CONNECT', `1m')dnl define(`confTRY_NULL_MX_LIST',true)dnl define(`confDONT_PROBE_INTERFACES',true)dnl define(`PROCMAIL_MAILER_PATH',`/usr/bin/procmail')dnl define(`ALIAS_FILE', `/etc/aliases')dnl dnl define(`STATUS_FILE', `/etc/mail/statistics')dnl define(`UUCP_MAILER_MAX', `2000000')dnl define(`confUSERDB_SPEC', `/etc/mail/userdb.db')dnl define(`confPRIVACY_FLAGS', `novrfy,noexpn,restrictqrun')dnl define(`confAUTH_OPTIONS', `A')dnl dnl TRUST_AUTH_MECH(`DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl dnl define(`confAUTH_MECHANISMS', `DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl dnl define(`confTO_QUEUEWARN', `4h')dnl dnl define(`confTO_QUEUERETURN', `5d')dnl dnl define(`confQUEUE_LA', `12')dnl dnl define(`confREFUSE_LA', `18')dnl dnl FEATURE(`redirect')dnl FEATURE(`always_add_domain')dnl FEATURE(`use_cw_file')dnl dnl FEATURE(`local_procmail')dnl FEATURE(`nouucp',`reject')dnl FEATURE(`access_db')dnl dnl MAILER(procmail)dnl dnl MAILER(smtp)dnl dnl dnl Who do i make myself look like? dnl if I am only using my cable ISP for dnl email then I should masquerade as part of my cable domain. dnl dnl MASQUERADE_AS(attbi.com)dnl dnl dnl if I have my own website, then I should masquerade as it dnl MASQUERADE_AS(MyDomain.net)dnl FEATURE(`allmasquerade')dnl FEATURE(`masquerade_envelope')dnl dnl FEATURE(delay_checks)dnl FEATURE(`no_default_msa',`dnl')dnl FEATURE(`smrsh',`/usr/sbin/smrsh')dnl FEATURE(`mailertable',`hash -o /etc/mail/mailertable.db')dnl FEATURE(`virtusertable',`hash -o /etc/mail/virtusertable.db')dnl FEATURE(use_ct_file)dnl FEATURE(local_procmail,`',`procmail -t -Y -a $h -d $u')dnl FEATURE(`access_db',`hash -o /etc/mail/access.db')dnl FEATURE(`blacklist_recipients')dnl define(`confCT_FILE', `/etc/mail/trusted-users') FEATURE(`use_ct_file') EXPOSED_USER(`root')dnl dnl This changes sendmail to only listen on the loopback device 127.0.0.1 dnl and not on any other network devices. Comment this out if you want dnl to accept email over the network. dnl DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA') dnl NOTE: binding both IPv4 and IPv6 daemon to the same port requires dnl a kernel patch dnl DAEMON_OPTIONS(`port=smtp,Addr=::1, Name=MTA-v6, Family=inet6') dnl We strongly recommend to comment this one out if you want to protect dnl yourself from spam. However, the laptop and users on computers that do dnl not have 24x7 DNS do need this. dnl FEATURE(`accept_unresolvable_domains')dnl dnl FEATURE(`relay_based_on_MX')dnl MAILER(smtp)dnl MAILER(procmail)dnl Cwlocalhost.localdomain -- Jeff Kinz, Open-PC, Emergent Research, Hudson, MA. jkinz@xxxxxxxx copyright 2003. Use is restricted. Any use is an acceptance of the offer at http://www.kinz.org/policy.html. Don't forget to change your password often.
