Hi, our mail server is running nicely for years. There is one recipients server that doesn't accept our mails with a "time out" response without sending a more detailed error message. I have attached the -v log output, but only the part that is produced by the smtp-process at sending to this recipient. I have also replaced the recipients name with the term "recipient", but left the mail server domain unchanged.
Any idea what might cause this problem? Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: inet_addr_local: configured 4 IPv4 addresses Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: inet_addr_local: configured 4 IPv6 addresses Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: process generation: 5721 (5721) Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: match_string: parent_domain_matches_subdomains: debug_peer_list ~? debug_peer_list Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: name_mask: 0 Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: auto_clnt_create: transport=local endpoint=private/tlsmgr Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: auto_clnt_open: connected to private/tlsmgr Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: send attr request = seed Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: send attr size = 32 Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: private/tlsmgr: wanted attribute: status Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: status Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: 0 Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: private/tlsmgr: wanted attribute: seed Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: seed Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: 7QLOqsbbZLYu9LTNy4OxLcxs5vPFcA8ocxXm+PThf24= Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: private/tlsmgr: wanted attribute: (list terminator) Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: (end) Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: send attr request = policy Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: send attr cache_type = smtp Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: private/tlsmgr: wanted attribute: status Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: status Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: 0 Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: private/tlsmgr: wanted attribute: cachable Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: cachable Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: 0 Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: private/tlsmgr: wanted attribute: timeout Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: timeout Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: 3600 Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: private/tlsmgr: wanted attribute: (list terminator) Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: (end) Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: match_string: parent_domain_matches_subdomains: fast_flush_domains ~? debug_peer_list Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: match_string: parent_domain_matches_subdomains: fast_flush_domains ~? fast_flush_domains Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: name_mask: canonical Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: name_mask: virtual Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: name_mask: dns Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: host name lookup methods: dns Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: auto_clnt_create: transport=local endpoint=private/scache Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: connection established Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: master_notify: status 0 Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: deliver_request_initial: send initial status Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: send attr status = 0 Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: flags Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: flags Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: 3 Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: queue_name Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: queue_name Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: active Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: queue_id Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: queue_id Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: 0C97F101A5168 Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: offset Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: offset Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: 712 Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: size Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: size Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: 74880 Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: nexthop Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: nexthop Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: exxonmobil.com Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: encoding Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: encoding Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: 7bit Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: smtputf8 Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: smtputf8 Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: 0 Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: sender Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: sender Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: clay.bi...@pamas.de Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: envelope_id Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: envelope_id Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: (end) Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: ret_flags Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: ret_flags Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: 0 Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: time Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: time Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: XHW7YwAAAAB5AwgAAAAAADxxxWMAAAAAdG8CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA== Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: log_client_name Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: log_client_name Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: unknown Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: log_client_address Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: log_client_address Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: 127.0.0.1 Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: log_client_port Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: log_client_port Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: 58118 Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: log_protocol_name Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: log_protocol_name Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: ESMTP Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: log_helo_name Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: log_helo_name Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: localhost Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: sasl_method Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: sasl_method Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: (end) Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: sasl_username Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: sasl_username Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: (end) Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: sasl_sender Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: sasl_sender Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: (end) Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: log_ident Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: log_ident Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: 8044F101A5169 Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: rewrite_context Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: rewrite_context Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: local Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: recipient_count Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: recipient_count Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: 1 Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: (list terminator) Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: (end) Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: original_recipient Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: original_recipient Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: recipi...@exxonmobil.com Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: recipient Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: recipient Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: recipi...@exxonmobil.com Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: offset Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: offset Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: 681 Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: dsn_orig_rcpt Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: dsn_orig_rcpt Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: rfc822;recipi...@exxonmobil.com Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: notify_flags Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: notify_flags Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute value: 0 Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp socket: wanted attribute: (list terminator) Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: input attribute name: (end) Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: deliver_request_get: file active/0C97F101A5168 Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: deliver_message: from clay.bi...@pamas.de Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp_parse_destination: exxonmobil.com smtp Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: connecting to exxonmobil.com port 25 Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: dns_query: exxonmobil.com (MX): OK Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: dns_get_answer: type MX for exxonmobil.com Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: dns_get_answer: type MX for exxonmobil.com Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp_addr_one: host mail-h.exxonmobil.com Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: lookup mail-h.exxonmobil.com type A flags RES_USE_DNSSEC Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: dns_query: mail-h.exxonmobil.com (A): OK Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: dns_get_answer: type A for mail-h.exxonmobil.com Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: lookup mail-h.exxonmobil.com type AAAA flags RES_USE_DNSSEC Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: dns_query: mail-h.exxonmobil.com (AAAA): Host found but no data record of requested type Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp_addr_one: host mail-d.exxonmobil.com Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: lookup mail-d.exxonmobil.com type A flags RES_USE_DNSSEC Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: dns_query: mail-d.exxonmobil.com (A): OK Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: dns_get_answer: type A for mail-d.exxonmobil.com Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: lookup mail-d.exxonmobil.com type AAAA flags RES_USE_DNSSEC Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: dns_query: mail-d.exxonmobil.com (AAAA): Host found but no data record of requested type Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: begin exxonmobil.com address list Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: pref 10 host mail-h.exxonmobil.com/158.26.1.146 Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: pref 10 host mail-d.exxonmobil.com/158.26.70.19 Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: end exxonmobil.com address list Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp_find_self: not found Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: global TLS level: may Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: ctable_locate: install entry key exxonmobil.com:mail-h.exxonmobil.com:25: Jan 13 12:57:43 mailserver3 postfix/smtp[3037980]: smtp_connect_addr: trying: mail-h.exxonmobil.com[158.26.1.146] port 25... Jan 13 12:58:13 mailserver3 postfix/smtp[3037980]: connect to mail-h.exxonmobil.com[158.26.1.146]:25: Connection timed out Jan 13 12:58:13 mailserver3 postfix/smtp[3037980]: ctable_locate: install entry key exxonmobil.com:mail-d.exxonmobil.com:25: Jan 13 12:58:13 mailserver3 postfix/smtp[3037980]: smtp_connect_addr: trying: mail-d.exxonmobil.com[158.26.70.19] port 25... Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: connect to mail-d.exxonmobil.com[158.26.70.19]:25: Connection timed out Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: connect to subsystem private/defer Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: send attr nrequest = 0 Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: send attr flags = 0 Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: send attr queue_id = 0C97F101A5168 Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: send attr original_recipient = recipi...@exxonmobil.com Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: send attr recipient = recipi...@exxonmobil.com Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: send attr offset = 681 Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: send attr dsn_orig_rcpt = rfc822;recipi...@exxonmobil.com Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: send attr notify_flags = 0 Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: send attr status = 4.4.1 Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: send attr diag_type = Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: send attr diag_text = Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: send attr mta_type = Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: send attr mta_mname = Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: send attr action = delayed Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: send attr reason = connect to mail-d.exxonmobil.com[158.26.70.19]:25: Connection timed out Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: private/defer socket: wanted attribute: status Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: input attribute name: status Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: input attribute value: 0 Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: private/defer socket: wanted attribute: (list terminator) Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: input attribute name: (end) Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: 0C97F101A5168: to=<recipi...@exxonmobil.com>, relay=none, delay=381463, delays=381403/0.02/60/0, dsn=4.4.1, status=deferred (connect to mail-d.exxonmobil.com[158.26.70.19]:25: Connection timed out) Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: flush_add: site exxonmobil.com id 0C97F101A5168 Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: match_list_match: exxonmobil.com: no match Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: flush_add: site exxonmobil.com id 0C97F101A5168 status 4 Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: deliver_request_final: send: "connect to mail-d.exxonmobil.com[158.26.70.19]:25: Connection timed out" -1 Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: send attr status = 4.4.1 Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: send attr diag_type = Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: send attr diag_text = Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: send attr mta_type = Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: send attr mta_mname = Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: send attr action = Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: send attr reason = connect to mail-d.exxonmobil.com[158.26.70.19]:25: Connection timed out Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: send attr status = 4294967295 Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: master_notify: status 1 Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: connection closed Jan 13 12:58:43 mailserver3 postfix/smtp[3037980]: auto_clnt_close: disconnect private/tlsmgr stream Jan 13 13:00:23 mailserver3 postfix/smtp[3037980]: idle timeout -- exiting Michael
