lsof -i :25
email:~ # lsof -i :25
COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME
sendmail 11098 root 3u IPv4 73496 TCP *:smtp (LISTEN)
I checked the sendmail file, but i cannot find the DAEMON=yes
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## Path: Network/Mail/Sendmail
## Description: Configuration of sendmail
## Type: string
## Default: ""
## Config: sendmail
## ServiceReload: sendmail
#
# smarthost - this host gets all outgoing email from us
# normally used for uucp-connected sites or for dialup connections
# use "uucp-dom:server.uucp.com" to deliver all email to "server.uucp.com"
#
SENDMAIL_SMARTHOST=""
## Type: string(localhost)
## Default: localhost
#
# sendmail assumes the following space-separated host-names to be
# the local host (this must just be used for names differrent to the
# hostname, for e.g. aliases like
www.nowhere.com)
# Note: Any hosts listed in here will cause reply-to: with the same
# hostname be rewritten to FROM_HEADER in outgoing emails. Starting
# with SuSE Linux 8.0, headers will only be rewritten if listed in
# MASQUERADE_DOMAINS.
# Host _not_ listed in here will get "relaying denied". Note that
# an entry in /etc/mail/virtusertable will NOT make any difference.
# Also the file /etc/mail/local-host-names is a bad choice, because
# in this case any masquerading will be taken into affect and rewrite
# the adresses in the header. For real relaying you have to use the
# file /etc/mail/relay-domains to allow relaying in both directions
# for listed domain names therein. The other way to allow relaying
# is to use a rule within the file /etc/mail/access together with
# USE_ACCESS_DB enabled. This is then used to generate the access db.
#
SENDMAIL_LOCALHOST="localhost"
## Type: yesno
## Default: no
# enable this to change also the recipient address.
# Don't use this feature, if you don't have the full /etc/aliases
# and the full /etc/passwd on your host.
#
SENDMAIL_ALLMASQUERADE="no"
## Type: string
## Default: ""
#
# do not deliver any email locally, but send all email to another host
# this can just be used with another system that has the same users on it
# and you probably also want to set the FROM_HEADER to the other host
#
SENDMAIL_RELAY=""
## Type: string
## Default: ""
#
# Used if no SENDMAIL_RELAY is given and local mails are send with local names
# that aren't local accounts or aliases. All these mails are redirected
# to the user given defined with SENDMAIL_LUSER, e.g.
# SENDMAIL_LUSER="postmaster" or SENDMAIL_LUSER="root". Note that this may
# violate the privacy of those mails.
#
SENDMAIL_LUSER=""
## Type: yesno
## Default: yes
#
# Turns on the access database feature. The access db gives you the ability
# to allow or refuse to accept mail from specified domains for administrative
# reasons. This option also adds the greet_pause ruleset enables open proxy
# and SMTP slamming protection. Sendmail will wait some seconds sending the
# initial 220 SMTP greeting.
# If any traffic is received before then, a 554 SMTP response is sent and
# all SMTP commands are rejected during the connection.
#
USE_ACCESS_DB="yes"
## Type: string
## Default: "-L sendmail -Am -bd -q30m -om"
#
# with what parameters should sendmail be started?
# normal sites use "-Am -bd -q30m -om".
# "-Am" will force sendmail to use sendmail.cf. "-q30m" will look every 30
# minutes to re-try sending failed email. "-bd" will start sendmail in daemon
# mode and sendmail will accept email over the network from other hosts.
# If you set SENDMAIL_EXPENSIVE and you have a dialup ISDN connection,
# you probably want to set this to "-bd -om" and run "sendmail -q"
# from your crontab.
#
SENDMAIL_ARGS="-L sendmail -Am -bd -q30m -om"
## Type: string
## Default: "-L sendmail-client -Ac -qp1m"
#
# with what parameters should sendmail _client_ be started?
# This is used to start the sendmail client daemon which runs as user
# mail and look at /var/spool/clientmqueue/ for any mail which should
# put to port 25 (smtp port) of localhost on which the master sendmail
# is listen.
# "-Ac" will force sendmail to use submit.cf. "-qp1m" will look every
# minute with the help of a persistent child for the queue to deliver
# mails to the port 25 of localhost where master sendmail daemon is listen.
# Note: to ensure that local mails will be delivered as fast as possible
# the full qualified host name should be part of SENDMAIL_LOCALHOST.
#
SENDMAIL_CLIENT_ARGS="-L sendmail-client -Ac -qp1m"
## Type: yesno
## Default: no
#
# sendmail will only queue email in /var/spool/mqueue and will only start
# to deliver it if "sendmail -q" is run
#
SENDMAIL_EXPENSIVE="no"
## Type: yesno
## Default: no
#
# sendmail will not try to canonify hostnames in your email
# so much less DNS-queries are send
# you probably want to enable this on a SENDMAIL_EXPENSIVE system.
# Don't forget to add the local, the mail hub, smart, and mail relay host
# with their IP addresses and the corresponding Full Qualified Domain Names
# to /etc/hosts. For most # people using dial on demand SENDMAIL_NOCANONIFY
# should work and no NODNS (see /etc/sysconfig/mail) is required.
#
SENDMAIL_NOCANONIFY="no"
## Type: string
## Default: ""
#
# A null client is a machine that can only send mail. It receives no
# mail from the network, and it does not deliver any mail locally.
# A null client typically uses POP or NFS for mailbox access.
# Possible values for NULLCLIENT are "" or the full qualified domain
# name of the mail server used for redirecting all mails.
#
NULLCLIENT=""
## Type: yesno
## Default: no
#
# This option forbids DNS-queries. It requires a well configured
# /etc/hosts. Sendmail users should also read /etc/sysconfig/sendmail
# the description of the variable SENDMAIL_NOCANONIFY.
NODNS="no"
## Type: yesno
## Default: no
#
# If set to yes, mail that will be delivered via smtp will stay
# in the queue unless someone issues "sendmail -q" or equivalent.
# A correct FQHOSTNAME for the local host is required.
DIALUP="no"
## Type: string
## Default: ""
#
# these domains can additional to the local domains be changed
# in /etc/mail/genericstable
#
SENDMAIL_GENERICS_DOMAIN=""
## Type: string
## Default: ""
#
# this is useful if you have several domains with disjoint namespaces
# hosted on the same machine. Include them as space-separated list
# of doamins.
# Note: Domains listed here will have their headers rewritten, like
# "Reply-To:
user@myhost.dyndns.org" is rewritten by sendmail to
# "Reply-To: user@$FROM_HEADER" on outgoing mail.
# To be able to receive mail under the dynamic DNS name, the name must
# also be listed in SENDMAIL_LOCALHOST (or a "relaying denied" results).
# If this list is non-empty, envelope from will be the FQHOSTNAME and
# not $FROM_HEADER (resulting in rejects if FQHOSTNAME is something.local),
# unless the FQHOSTNAME is listed here is well.
#
MASQUERADE_DOMAINS=""
## Type: yesno
## Default: no
#
# this is usefull if FROM_HEADER is set and you want to replay all
# all names within MASQUERADE_DOMAINS even if some names with sevearl
# leading subdomains are not put into MASQUERADE_DOMAINS.
#
MASQUERADE_ENTIRE_DOMAIN="no"
## Type: yesno
## Default: no
#
# map (un)qualified domains to qualified domains in mail headers.
# This can be used to provide domain name mapping in the file
# /etc/mail/domaintable. Use of this should really be limited
# to your own domains. It may be useful if you change names
# (e.g., your company changes names from oldname.com to newname.com).
#
DOMAINTABLE="no"
## Type: list(gssapi,otp,digest-md5,cram-md5,plain,login,all)
## Default: ""
#
# enable SMTP AUTHENTICATION to other servers if required, possible
# values are e.g. plain, gssapi, digest-md5, and cram-md5.
# To use the choosen authentication the appropiate cyrus-sasl package
# has to be installed: cyrus-sasl-(gssapi|otp|digestmd5|crammd5|plain)
# Please not that most providers only know about `plain' which means
# that the user data will not be encrypted.
# You will have to identify yourself using the information in
# /etc/mail/auth/auth-info.
#
SMTP_AUTH_MECHANISMS=""
## Type: list(gssapi,otp,digest-md5,cram-md5,plain,login,all)
## Default: ""
#
# enable SMTP AUTHENTICATION as a server, for an explanation read
# /usr/share/sendmail/README, /usr/share/doc/packages/sendmail/op.txt.bz2,
# and
http://www.sendmail.org/~ca/email/auth.html.
# Possible values are e.g. gssapi, digest-md5, and cram-md5.
# To use the choosen authentication the appropiate cyrus-sasl package
# has to be installed: cyrus-sasl-(gssapi|otp|digestmd5|crammd5|plain)
# Note that `plain' should be used because data will not be encrypted
# and that more than one value separated by spaces is allowed.
#
SMTP_AUTH_SERVER="cram-md5"
## Type: list(server,client,both)
## Default: ""
#
# STARTTLS certification, for an explanation read
# /usr/share/doc/packages/sendmail/op.txt.bz2 and
#
http://www.sendmail.org/~ca/email/starttls.html
# The certification and key files are placed at
# /etc/mail/certs/ as CA.cert.pem, MYServer.cert.pem,
# MYServer.key.pem (for STARTTLS server) and
# MYClient.cert.pem, MYClient.key.pem (for STARTTLS client)
# possible values are `server', `client', or `both'.
#
STARTTLS=""
## Type: yesno
## Default: yes
#
# Normally all upper case letters of the keys in the db files of sendmail
# will be folded to lower case. You may change this to "no" and break the
# normal behaviour at your own risk.
#
SENDMAIL_DB_FOLD="yes"
## Type: string
## Default: ""
#
# Use real-time black-hole lists. Sendmail will refuse to receive mail from
# any IP number which is listed in any of the RBL lookups given here.
# Space seperated list of host names to query via DNS, e.g.:
# inputs.orbz.org
# relays.orbl.org
# relays.ordb.org
# relays.osirusoft.com
# orbs.dorkslayers.com
#
SENDMAIL_DNSRBL=""
## Type: integer(1000000:10000000)
## Default: 2000000
#
# The maximum size of UUCP mesages in bytes. For real modem connection this
# should not more than 1MB. For ISDN/DSL you may choose much more if the
# UUCP connection type is TCP which means that not modem is used but a UUCP
# tunnel through TCP/IP.
#
SENDMAIL_UUCP_MAX_MSG="2000000"
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Thanks for your swift response.