Im use ISPConfig 3, and Roundcube. Main.cf Code: # See /usr/share/postfix/main.cf.dist for a commented, more complete version # 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 $mail_name (Ubuntu) biff = no # appending .domain is the MUA's job. append_dot_mydomain = no # Uncomment the next line to generate "delayed mail" warnings #delay_warning_time = 4h readme_directory = /usr/share/doc/postfix # TLS parameters smtpd_tls_cert_file = /etc/postfix/smtpd.cert smtpd_tls_key_file = /etc/postfix/smtpd.key smtpd_use_tls = yes smtpd_tls_session_cache_database = btree:${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 = server1.bppapps.com 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 = server1.bppapps.com, localhost, localhost.localdomain #relayhost = #mynetworks = 127.0.0.0/8 [::1]/128 mynetworks = 127.0.0.0/8 [::1]/128, 192.168.100.0/24 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, check_recipient_access mysql:/etc/postfix/mysql-virtual_recipient.cf, reject_rbl_client zen.spamhaus.org, 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, 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 content_filter = amavis:[127.0.0.1]:10024 receive_override_options = no_address_mappings message_size_limit = 0
this is my mail log Code: Oct 18 12:45:13 server1 dovecot: imap([email protected]): Logged out in=318 out=2809 Oct 18 12:45:42 server1 postfix/smtp[6590]: connect to gmail-smtp-in.l.google.com[74.125.200.27]:25: Connection timed out Oct 18 12:45:42 server1 postfix/smtp[6590]: connect to gmail-smtp-in.l.google.com[2404:6800:4003:c00::1b]:25: Network is unreachable Oct 18 12:45:42 server1 postfix/smtp[6590]: connect to alt1.gmail-smtp-in.l.google.com[2404:6800:4008:c01::1b]:25: Network is unreachable Oct 18 12:46:12 server1 postfix/smtp[6590]: connect to alt1.gmail-smtp-in.l.google.com[173.194.72.27]:25: Connection timed out Oct 18 12:46:12 server1 postfix/smtp[6590]: connect to alt2.gmail-smtp-in.l.google.com[2607:f8b0:400e:c03::1a]:25: Network is unreachable Oct 18 12:46:12 server1 postfix/smtp[6590]: 0DB1B2780D14: to=<[email protected]>, relay=none, delay=60, delays=0.05/0/60/0, dsn=4.4.1, status=deferred (connect to alt2.gmail-smtp-in.l.google.com[2607:f8b0:400e:c03::1a]:25: Network is unreachable) Oct 18 12:46:12 server1 dovecot: imap-login: Login: user=<[email protected]>, method=PLAIN, rip=::1, lip=::1, mpid=7500, secured, session=<vBLQNR0/TqUAAAAAAAAAAAAAAAAAAAAB> Oct 18 12:46:12 server1 dovecot: imap([email protected]): Logged out in=90 out=880
I've check the ping and normal results Code: it-staff@server1:/var/log$ ping google.com PING google.com (74.125.200.113) 56(84) bytes of data. 64 bytes from sa-in-f113.1e100.net (74.125.200.113): icmp_seq=1 ttl=48 time=17.2 ms 64 bytes from sa-in-f113.1e100.net (74.125.200.113): icmp_seq=2 ttl=48 time=20.5 ms 64 bytes from sa-in-f113.1e100.net (74.125.200.113): icmp_seq=3 ttl=48 time=17.5 ms 64 bytes from sa-in-f113.1e100.net (74.125.200.113): icmp_seq=4 ttl=48 time=17.5 ms 64 bytes from sa-in-f113.1e100.net (74.125.200.113): icmp_seq=5 ttl=48 time=18.6 ms 64 bytes from sa-in-f113.1e100.net (74.125.200.113): icmp_seq=6 ttl=48 time=15.9 ms but the test results on the web IPv6-test.com, doesn't support ipv6