Hi, I have pasted below the sendmail.mc file for reference.
About system users.... well we can have MTA operating with virtual users too. The issue that I am concerned is that user authentication works simply as the user name and not as entire email address. Or simply... the MTA (sendmail) doesnt verify if the email address of the sender is the same as that of the user that logged in. I think I am missing use of some macros in the sendmail.mc file.. dont know which one or how to use it and I cannot swtich MTA to postfix as it needs policy decision. :( About the access file... well that I guess will only play a role in filtering. I.e. whether RELAY should be allowed from a particular user/domain. I guess it doesnt have any role with authentication or verifying sender address with username. Regards, DoOrsOfpErcEpTiON Ps: Sendmail.mc file --- divert(-1)dnl dnl # dnl # This is the sendmail macro config file for m4. If you make changes to dnl # /etc/mail/sendmail.mc, you will need to regenerate the dnl # /etc/mail/sendmail.cf file by confirming that the sendmail-cf package is dnl # installed and then performing a dnl # dnl # make -C /etc/mail dnl # include(`/usr/share/sendmail-cf/m4/cf.m4')dnl VERSIONID(`setup for Red Hat Linux')dnl OSTYPE(`linux')dnl dnl # dnl # default logging level is 9, you might want to set it higher to dnl # debug the configuration dnl # dnl define(`confLOG_LEVEL', `9')dnl dnl # dnl # Uncomment and edit the following line if your outgoing mail needs to dnl # be sent out through an external mail server: dnl # dnl define(`SMART_HOST',`smtp.your.provider') dnl # define(`confDEF_USER_ID',``8:12'')dnl 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 define(`STATUS_FILE', `/var/log/mail/statistics')dnl define(`UUCP_MAILER_MAX', `2000000')dnl define(`confUSERDB_SPEC', `/etc/mail/userdb.db')dnl define(`confPRIVACY_FLAGS', `authwarnings,novrfy,noexpn,restrictqrun')dnl define(`confAUTH_OPTIONS', `A')dnl dnl # dnl # The following allows relaying if the user authenticates, and disallows dnl # plaintext authentication (PLAIN/LOGIN) on non-TLS links dnl # dnl define(`confAUTH_OPTIONS', `A p y')dnl dnl # dnl # PLAIN is the preferred plaintext authentication method and used by dnl # Mozilla Mail and Evolution, though Outlook Express and other MUAs do dnl # use LOGIN. Other mechanisms should be used if the connection is not dnl # guaranteed secure. dnl # Please remember that saslauthd needs to be running for AUTH. dnl # TRUST_AUTH_MECH(`EXTERNAL DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl define(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl dnl # dnl # Rudimentary information on creating certificates for sendmail TLS: dnl # cd /usr/share/ssl/certs; make sendmail.pem dnl # Complete usage: dnl # make -C /usr/share/ssl/certs usage dnl # define(`confCACERT_PATH',`/usr/share/ssl/certs') define(`confCACERT',`/usr/share/ssl/certs/ca-bundle.crt') define(`confSERVER_CERT',`/usr/share/ssl/certs/sendmail.pem') define(`confSERVER_KEY',`/usr/share/ssl/certs/sendmail.pem') define(`confCLIENT_CERT',`/usr/share/ssl/certs/sendmail.pem') define(`confCLIENT_KEY',`/usr/share/ssl/certs/sendmail.pem') dnl # dnl # This allows sendmail to use a keyfile that is shared with OpenLDAP's dnl # slapd, which requires the file to be readble by group ldap dnl # dnl define(`confDONT_BLAME_SENDMAIL',`groupreadablekeyfile')dnl dnl # define(`confTO_QUEUERETURN',`3d')dnl define(`confTO_QUEUEWARN_NORMAL',`4h')dnl dnl # NOTE: [anup nair 21Aug08] commeting the following lines due to poor communication between incoming.service.zapak.com and emailDB servers. dnl # define(`confTO_QUEUERETURN_NORMAL',`2d')dnl dnl # define(`confTO_QUEUERETURN_URGENT',`1d')dnl dnl # define(`confTO_QUEUERETURN_NONURGENT',`1d')dnl dnl # define(`confTO_QUEUEWARN',`4h')dnl dnl # define(`confTO_QUEUEWARN_NORMAL',`2h')dnl dnl # define(`confTO_QUEUEWARN_URGENT',`1h')dnl dnl # define(`confTO_QUEUEWARN_NONURGENT',`4h')dnl dnl # -- ^ end of comment ^ -- dnl define(`confTO_QUEUEWARN', `4h')dnl dnl define(`confTO_QUEUERETURN', `5d')dnl dnl define(`confQUEUE_LA', `12')dnl dnl define(`confREFUSE_LA', `18')dnl define(`confTO_IDENT', `0')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(redirect)dnl FEATURE(always_add_domain)dnl FEATURE(use_cw_file)dnl FEATURE(use_ct_file)dnl dnl # dnl # The following limits the number of processes sendmail can fork to accept dnl # incoming messages or process its message queues to 12.) sendmail refuses dnl # to accept connections once it has reached its quota of child processes. dnl # dnl define(`confMAX_DAEMON_CHILDREN', 12)dnl dnl # dnl # Limits the number of new connections per second. This caps the overhead dnl # incurred due to forking new sendmail processes. May be useful against dnl # DoS attacks or barrages of spam. (As mentioned below, a per-IP address dnl # limit would be useful but is not available as an option at this writing.) dnl # dnl define(`confCONNECTION_RATE_THROTTLE', 3)dnl dnl # dnl # The -t option will retry delivery if e.g. the user runs over his quota. dnl # FEATURE(local_procmail,`',`procmail -t -Y -a $h -d $u')dnl FEATURE(`access_db',`hash -T<TMPF> -o /etc/mail/access.db')dnl FEATURE(`blacklist_recipients')dnl EXPOSED_USER(`root')dnl dnl # dnl # The following causes sendmail to only listen on the IPv4 loopback address dnl # 127.0.0.1 and not on any other network devices. Remove the loopback dnl # address restriction to accept email from the internet or intranet. dnl # REPLACE 'xx' WITH IP ADDRESS OCTET DAEMON_OPTIONS(`Port=smtp,Addr=192.168.1.xx, Name=MTA')dnl DAEMON_OPTIONS(`Port=smtp,Addr=220.227.xx.xx, Name=MTA')dnl DAEMON_OPTIONS(`Port=smtp,Addr=localhost, Name=MTA')dnl dnl # dnl # dnl # The following causes sendmail to additionally listen to port 587 for dnl # mail from MUAs that authenticate. Roaming users who can't reach their dnl # preferred sendmail daemon due to port 25 being blocked or redirected find dnl # this useful. dnl # ## -- Anup: added to work in support of port 25. DAEMON_OPTIONS(`Port=submission, Name=MSA, M=Ea')dnl dnl # dnl # The following causes sendmail to additionally listen to port 465, but dnl # starting immediately in TLS mode upon connecting. Port 25 or 587 followed dnl # by STARTTLS is preferred, but roaming clients using Outlook Express can't dnl # do STARTTLS on ports other than 25. Mozilla Mail can ONLY use STARTTLS dnl # and doesn't support the deprecated smtps; Evolution <1.1.1 uses smtps dnl # when SSL is enabled-- STARTTLS support is available in version 1.1.1. dnl # dnl # For this to work your OpenSSL certificates must be configured. dnl # dnl DAEMON_OPTIONS(`Port=smtps, Name=TLSMTA, M=s')dnl dnl # dnl # The following causes sendmail to additionally listen on the IPv6 loopback dnl # device. Remove the loopback address restriction listen to the network. dnl # dnl DAEMON_OPTIONS(`port=smtp,Addr=::1, Name=MTA-v6, Family=inet6')dnl dnl # dnl # enable both ipv6 and ipv4 in sendmail: dnl # dnl DAEMON_OPTIONS(`Name=MTA-v4, Family=inet, Name=MTA-v6, Family=inet6') dnl # dnl # We strongly recommend not accepting unresolvable domains if you want to dnl # protect yourself from spam. However, the laptop and users on computers dnl # that do not have 24x7 DNS do need this. dnl # FEATURE(`accept_unresolvable_domains')dnl dnl # dnl FEATURE(`relay_based_on_MX')dnl dnl # dnl # Also accept email sent to "localhost.localdomain" as local email. dnl # LOCAL_DOMAIN(`mail.zapak-corp.com')dnl LOCAL_DOMAIN(`mail.crazykart.in')dnl dnl # dnl # The following example makes mail from this host and any additional dnl # specified domains appear to be sent from mydomain.com dnl # MASQUERADE_AS(`zapak-corp.com')dnl dnl # dnl # masquerade not just the headers, but the envelope as well dnl # dnl FEATURE(masquerade_envelope)dnl dnl # dnl # masquerade not just @mydomainalias.com, but @*.mydomainalias.com as well dnl # dnl FEATURE(masquerade_entire_domain)dnl dnl # dnl MASQUERADE_DOMAIN(localhost)dnl dnl MASQUERADE_DOMAIN(localhost.localdomain)dnl dnl MASQUERADE_DOMAIN(mydomainalias.com)dnl dnl MASQUERADE_DOMAIN(mydomain.lan)dnl dnl # Clamav scan option dnl # define(`_FFR_MILTER')dnl INPUT_MAIL_FILTER(`clmilter', `S=local:/var/run/clamav/clmilter.socket, T=S:4m;R:4m;E:10m') define(`confINPUT_MAIL_FILTERS',`clmilter')dnl MAILER(smtp)dnl MAILER(procmail)dnl ==== xxx ==== --- In [email protected], "Viket Trivedi" <[EMAIL PROTECTED]> wrote: > > On Tue, Sep 2, 2008 at 2:19 PM, DoOrsOfpErcEpTioN [EMAIL PROTECTED]: > Hi, > > The users on sendmail/qmail or any other mailing system will be unix/linux > users only. > The domain name is configured in the sendmail configurations only. so the > username will never be [EMAIL PROTECTED] format. > it will be xyz only. > Just curious, did you try mentioning user in the access file and making > configuratiion again and testing. > Also as i had asked, can you share sendmail.mc file if possible. > > > [Non-text portions of this message have been removed] > [Non-text portions of this message have been removed]
