Hello guys, today I installed completely new ISP config server with emails, dns etc. I can send / receive emails localy and receive emails from external domains but I can not send to external domains. Here is my main.cf # Debian specific: Specifying a file name will cause the first # line of that file to be used as the name. The Debian default # is /etc/mailname. #myorigin = /etc/mailname smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU) biff = no # appending .domain is the MUA's job. append_dot_mydomain = no # Uncomment the next line to generate "delayed mail" warnings #delay_warning_time = 4h readme_directory = /usr/share/doc/postfix # See http://www.postfix.org/COMPATIBILITY_README.html -- default to 2 on # fresh installs. compatibility_level = 2 # TLS parameters smtpd_tls_cert_file = /etc/postfix/smtpd.cert smtpd_tls_key_file = /etc/postfix/smtpd.key smtpd_use_tls = yes smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache # See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for # information on enabling SSL in the smtp client. smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination myhostname = mail.sametime.cz alias_maps = hash:/etc/aliases, hash:/var/lib/mailman/data/aliases alias_database = hash:/etc/aliases, hash:/var/lib/mailman/data/aliases myorigin = /etc/mailname mydestination = mail.sametime.cz, localhost, localhost.localdomain relayhost = mynetworks = 127.0.0.0/8 [::1]/128 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all inet_protocols = all html_directory = /usr/share/doc/postfix/html virtual_alias_domains = virtual_alias_maps = hash:/var/lib/mailman/data/virtual-mailman, proxy:mysql:/etc/postfix/mysql-virtual_forwardings.cf, proxy:mysql:/etc/postfix/mysql-virtual_email2email.cf virtual_mailbox_domains = proxy:mysql:/etc/postfix/mysql-virtual_domains.cf virtual_mailbox_maps = proxy:mysql:/etc/postfix/mysql-virtual_mailboxes.cf virtual_mailbox_base = /var/vmail virtual_uid_maps = mysql:/etc/postfix/mysql-virtual_uids.cf virtual_gid_maps = mysql:/etc/postfix/mysql-virtual_gids.cf sender_bcc_maps = proxy:mysql:/etc/postfix/mysql-virtual_outgoing_bcc.cf smtpd_sasl_auth_enable = yes broken_sasl_auth_clients = yes smtpd_sasl_authenticated_header = yes smtpd_restriction_classes = greylisting greylisting = check_policy_service inet:127.0.0.1:10023 smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, reject_rbl_client zen.spamhaus.org, check_recipient_access mysql:/etc/postfix/mysql-virtual_recipient.cf, check_recipient_access mysql:/etc/postfix/mysql-virtual_policy_greylist.cf smtpd_tls_security_level = may transport_maps = hash:/var/lib/mailman/data/transport-mailman, proxy:mysql:/etc/postfix/mysql-virtual_transports.cf relay_domains = mysql:/etc/postfix/mysql-virtual_relaydomains.cf relay_recipient_maps = mysql:/etc/postfix/mysql-virtual_relayrecipientmaps.cf smtpd_sender_login_maps = proxy:mysql:/etc/postfix/mysql-virtual_sender_login_maps.cf proxy_read_maps = $local_recipient_maps $mydestination $virtual_alias_maps $virtual_alias_domains $sender_bcc_maps $virtual_mailbox_maps $virtual_mailbox_domains $relay_recipient_maps $relay_domains $canonical_maps $sender_canonical_maps $recipient_canonical_maps $relocated_maps $transport_maps $mynetworks $smtpd_sender_login_maps smtpd_helo_required = yes smtpd_helo_restrictions = permit_sasl_authenticated, permit_mynetworks, check_helo_access regexp:/etc/postfix/helo_access, reject_invalid_hostname, reject_non_fqdn_hostname, reject_invalid_helo_hostname, reject_unknown_helo_hostname, check_helo_access regexp:/etc/postfix/blacklist_helo smtpd_sender_restrictions = check_sender_access regexp:/etc/postfix/tag_as_originating.re , permit_mynetworks, permit_sasl_authenticated, check_sender_access mysql:/etc/postfix/mysql-virtual_sender.cf, check_sender_access regexp:/etc/postfix/tag_as_foreign.re smtpd_client_restrictions = check_client_access mysql:/etc/postfix/mysql-virtual_client.cf smtpd_client_message_rate_limit = 100 maildrop_destination_concurrency_limit = 1 maildrop_destination_recipient_limit = 1 virtual_transport = dovecot header_checks = regexp:/etc/postfix/header_checks mime_header_checks = regexp:/etc/postfix/mime_header_checks nested_header_checks = regexp:/etc/postfix/nested_header_checks body_checks = regexp:/etc/postfix/body_checks owner_request_special = no smtp_tls_security_level = may smtpd_tls_mandatory_protocols = !SSLv2, !SSLv3 smtpd_tls_protocols = !SSLv2,!SSLv3 smtp_tls_protocols = !SSLv2,!SSLv3 smtpd_tls_exclude_ciphers = RC4, aNULL smtp_tls_exclude_ciphers = RC4, aNULL dovecot_destination_recipient_limit = 1 smtpd_sasl_type = dovecot smtpd_sasl_path = private/auth message_size_limit = 0 content_filter = amavis:[127.0.0.1]:10024 receive_override_options = no_address_mappings and logs when trying to send email to externa domain Nov 25 01:43:00 mail postfix/submission/smtpd[7603]: connect from ip-37-188-190-181.eurotel.cz[37.188.190.181] Nov 25 01:43:01 mail postfix/submission/smtpd[7603]: NOQUEUE: filter: RCPT from ip-37-188-190-181.eurotel.cz[37.188.190.181]: <[email protected]>: Sender address triggers FILTER amavis:[127.0.0.1]:10026; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<[100.98.101.167]> Nov 25 01:43:01 mail postfix/submission/smtpd[7603]: 6023EA1571: client=ip-37-188-190-181.eurotel.cz[37.188.190.181], sasl_method=PLAIN, [email protected] Nov 25 01:43:01 mail postfix/cleanup[7607]: 6023EA1571: message-id=<[email protected]> Nov 25 01:43:01 mail postfix/qmgr[6061]: 6023EA1571: from=<[email protected]>, size=1217, nrcpt=1 (queue active) Nov 25 01:43:02 mail postfix/smtpd[7630]: connect from localhost[127.0.0.1] Nov 25 01:43:02 mail postfix/smtpd[7630]: 12E35A1573: client=localhost[127.0.0.1] Nov 25 01:43:02 mail postfix/cleanup[7607]: 12E35A1573: message-id=<[email protected]> Nov 25 01:43:02 mail postfix/qmgr[6061]: 12E35A1573: from=<[email protected]>, size=1665, nrcpt=1 (queue active) Nov 25 01:43:02 mail postfix/smtpd[7630]: disconnect from localhost[127.0.0.1] ehlo=1 mail=1 rcpt=1 data=1 quit=1 commands=5 Nov 25 01:43:02 mail amavis[6104]: (06104-03) Passed CLEAN {RelayedOutbound}, ORIGINATING LOCAL [37.188.190.181]:51997 [37.188.190.181] <[email protected]> -> <[email protected]>, Queue-ID: 6023EA1571, Message-ID: <[email protected]>, mail_id: ODdLv3pHO_pU, Hits: 2.584, size: 1217, queued_as: 12E35A1573, 185 ms Nov 25 01:43:02 mail postfix/smtp[7627]: 6023EA1571: to=<[email protected]>, relay=127.0.0.1[127.0.0.1]:10026, delay=0.77, delays=0.57/0.02/0.01/0.18, dsn=2.0.0, status=sent (250 2.0.0 from MTA(smtp:[127.0.0.1]:10027): 250 2.0.0 Ok: queued as 12E35A1573) Nov 25 01:43:02 mail postfix/qmgr[6061]: 6023EA1571: removed Nov 25 01:43:16 mail dovecot: imap-login: Login: user=<[email protected]>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=7633, secured, session=<l/uLgHJ7lKJ/AAAB> Nov 25 01:43:16 mail dovecot: imap([email protected]): Logged out in=119 out=1241 Nov 25 01:43:17 mail postfix/smtp[7631]: 12E35A1573: lost connection with gmail-smtp-in.l.google.com[64.233.167.26] while receiving the initial server greeting Nov 25 01:43:17 mail postfix/smtp[7631]: connect to gmail-smtp-in.l.google.com[2a00:1450:400c:c0a::1b]:25: Cannot assign requested address Thank you very much for any help! Jiri
Hey Florian, yes tenlnet works fine 64.233.167.27... Connected to gmail-smtp-in.l.google.com. Escape character is '^]'. Here is a log from firewall I´m a bit out of options tbh I had an exchange server before and it worked fine. So ISP doesn´t block smtp.
But it has to be server misconfiguration because from the another postfix server i turned on just for testing I can send emails to all domains.
Ok I tried to reinstall ISPC from sratch but with CentOS, I was able to send one mail to outside domain...then Im back to same issue I´m really out of ideas here.
Here is my current mail log if I try to send email to gmail domain... Nov 25 18:35:07 mail postfix/smtpd[13238]: connect from localhost[127.0.0.1] Nov 25 18:35:07 mail postfix/smtpd[13238]: 435EA20CBA14: client=localhost[127.0.0.1] Nov 25 18:35:07 mail postfix/cleanup[13218]: 435EA20CBA14: message-id=<[email protected]> Nov 25 18:35:07 mail postfix/qmgr[18262]: 435EA20CBA14: from=<[email protected]>, size=951, nrcpt=1 (queue active) Nov 25 18:35:07 mail postfix/smtpd[13238]: disconnect from localhost[127.0.0.1] Nov 25 18:35:07 mail amavis[18295]: (18295-05) Passed CLEAN {RelayedOutbound}, MYNETS LOCAL [127.0.0.1] <[email protected]> -> <[email protected]>, Message-ID: <[email protected]>, mail_id: rHwHPKVV5YjR, Hits: 2.307, size: 510, queued_as: 435EA20CBA14, 5505 ms Nov 25 18:35:07 mail postfix/smtp[13224]: B34F420CBA11: to=<[email protected]>, relay=127.0.0.1[127.0.0.1]:10024, delay=5.6, delays=0.05/0.01/0/5.5, dsn=2.0.0, status=sent (250 2.0.0 from MTA(smtp:[127.0.0.1]:10025): 250 2.0.0 Ok: queued as 435EA20CBA14) Nov 25 18:35:07 mail postfix/qmgr[18262]: B34F420CBA11: removed Nov 25 18:35:12 mail postfix/smtpd[13107]: warning: unknown[103.207.38.153]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Nov 25 18:35:16 mail postfix/qmgr[18262]: 43CBF20CBA10: from=<[email protected]>, size=1915, nrcpt=1 (queue active) Nov 25 18:35:22 mail postfix/smtp[13245]: 435EA20CBA14: lost connection with gmail-smtp-in.l.google.com[64.233.167.27] while receiving the initial server greeting Nov 25 18:35:22 mail postfix/smtp[13245]: connect to gmail-smtp-in.l.google.com[2a00:1450:400c:c0a::1a]:25: Network is unreachable Nov 25 18:35:22 mail postfix/smtp[13245]: connect to alt1.gmail-smtp-in.l.google.com[2a00:1450:4010:c0a::1b]:25: Network is unreachable Nov 25 18:35:22 mail postfix/smtpd[13107]: warning: unknown[103.207.38.153]: SASL LOGIN authentication failed: Connection lost to authentication server Nov 25 18:35:31 mail postfix/smtp[13257]: 43CBF20CBA10: lost connection with exchange.voksys.cz[80.95.118.138] while receiving the initial server greeting Nov 25 18:35:37 mail postfix/smtp[13245]: 435EA20CBA14: lost connection with alt1.gmail-smtp-in.l.google.com[173.194.221.27] while receiving the initial server greeting Nov 25 18:35:46 mail postfix/smtp[13257]: 43CBF20CBA10: lost connection with backup.smarthosting.cz[109.107.203.30] while receiving the initial server greeting Nov 25 18:35:46 mail postfix/smtp[13257]: connect to backup.smarthosting.cz[2a00:11b0:f100:1809::5]:25: Network is unreachable Nov 25 18:35:46 mail postfix/smtp[13257]: 43CBF20CBA10: to=<[email protected]>, relay=none, delay=468, delays=438/0.01/30/0, dsn=4.4.1, status=deferred (connect to backup.smarthosting.cz[2a00:11b0:f100:1809::5]:25: Network is unreachable)
Is the IP you have on a black list? Is telnet to google port 25 working or not? #3 and #5 contradict.
IP is not blacklisted. Here is result of telnet [root@mail ~]# telnet 173.194.221.26 25 Trying 173.194.221.26... Connected to 173.194.221.26. Escape character is '^]'. Connection closed by foreign host. But as I said I was able to send one email to external domain...then it starded again. Also I can see outgoint smtp traffic in firewall log
Finally managed to fix it. Firewall was scanning all outgoing SMTP/S traffic and for some reason blocked all outgoing messages. It wasn´t in a log so I tought this is not an issue. But it was. Thanks guys for your time! Cheers Jir
