cd /var/log tail -f maillog Sep 26 09:50:32 server1 sendmail[4481]: m8Q6oVXu004481: [email protected], ctladdr=web15_user (10020/10015), delay=00:00:01, xdelay=00:00:01, mailer=relay, pri=30123, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (Ok: queued as 0C42728680D8) Sep 26 09:50:32 server1 postfix/smtp[2842]: 0C42728680D8: to=<[email protected]>, relay=none, delay=0.13, delays=0.13/0/0/0, dsn=5.4.4, status=bounced (Host or domain name not found. Name service error for name=localhost.localdomain type=A: Host not found) cd /etc cat hosts # Do not remove the following line, or various programs # that require network functionality will fail. 127.0.0.1 localhost.localdomain localhost www domain.com server1.domain.com server1 ::1 localhost6.localdomain6 localhost6 cd /etc/postfix cat local-host-names localhost server1.domain.com localhost.server1.domain.com localhost.domain.com localhost.localdomain www.domain.com cat main.cf ...smtpd_sasl_local_domain = smtpd_sasl_auth_enable = yes smtpd_sasl_security_options = noanonymous broken_sasl_auth_clients = yes smtpd_sasl_authenticated_header = yes smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, reject_unlisted_recipient, reject_unknown_recipient_domain, reject_unverified_recipient, reject_rbl_client dsn.rfc-ignorant.org, reject_rbl_client zen.spamhaus.org, reject_rbl_client bl.spamcop.net, reject_rbl_client dnsbl.sorbs.net, reject_rbl_client cbl.abuseat.org, permit mynetworks = 127.0.0.0/8 smtpd_tls_auth_only = no smtp_use_tls = yes smtpd_use_tls = yes smtp_tls_note_starttls_offer = yes smtpd_tls_key_file = /etc/postfix/ssl/smtpd.key smtpd_tls_cert_file = /etc/postfix/ssl/smtpd.crt smtpd_tls_CAfile = /etc/postfix/ssl/cacert.pem smtpd_tls_loglevel = 1 smtpd_tls_received_header = yes smtpd_tls_session_cache_timeout = 3600s tls_random_source = dev:/dev/urandom home_mailbox = Maildir/ mailbox_command = smtpd_etrn_restrictions = reject smtpd_reject_unlisted_sender = yes disable_vrfy_command = yes strict_rfc821_envelopes = yes #show_user_unknown_table_name = no address_verify_sender = <> smtpd_helo_required = yes smtp_always_send_ehlo = yes smtpd_hard_error_limit = 8 #virtual_maps = hash:/etc/postfix/virtusertable #mydestination = /etc/postfix/local-host-names myhostname = server1.domain.com mydomain = domain.com myorigin = $mydomain mydestination = $myhostname, localhost.$mydomain, localhost [root@server1 log]# telnet localhost.localdomain 25 Trying 127.0.0.1... Connected to localhost.localdomain (127.0.0.1). Escape character is '^]'. 220 server1.domain.com ESMTP Postfix ehlo server1.domain.com 250-server1.domain.com 250-PIPELINING 250-SIZE 10240000 250-ETRN 250-STARTTLS 250-AUTH PLAIN LOGIN 250-AUTH=PLAIN LOGIN 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN quit 221 2.0.0 Bye Connection closed by foreign host.
