Postfixからこのメールを送信するにはどうすればよいですか? Postfix2.6.6を実行しているCentOSリリース6.8を使用しています。
Jan 16 21:23:16 ip-172-99-99-99 postfix/smtp[17128]: connect to alt1.aspmx.l.google.com[2607:f8b0:4001:c06::1a]:25: Network is unreachable
Jan 16 21:23:16 ip-172-99-99-99 postfix/smtp[17128]: connect to aspmx2.googlemail.com[2607:f8b0:4001:c06::1a]:25: Network is unreachable
Jan 16 21:23:16 ip-172-99-99-99 postfix/smtp[17128]: connect to aspmx3.googlemail.com[2607:f8b0:4002:c03::1a]:25: Network is unreachable
Jan 16 21:23:16 ip-172-99-99-99 postfix/smtp[17128]: connect to aspmx5.googlemail.com[2607:f8b0:400c:c11::1b]:25: Network is unreachable
Jan 16 21:23:16 ip-172-99-99-99 postfix/smtp[17128]: connect to aspmx.l.google.com[2607:f8b0:400e:c04::1a]:25: Network is unreachable
Jan 16 21:23:16 ip-172-99-99-99 postfix/smtp[17128]: A3AEE2026D: to=<[email protected]>, relay=none, delay=361752, delays=361752/0.04/0.28/0, dsn=4.4.1, status=deferred (connect to aspmx.l.google.com[2607:f8b0:400e:c04::1a]:25: Network is unreachable)
# postqueue -p
-Queue ID- --Size-- ----Arrival Time---- -Sender/Recipient-------
A3AEE2026D 9899 Thu Jan 12 16:54:04 [email protected]
(connect to aspmx4.googlemail.com[2607:f8b0:400d:c0b::1a]:25: Network is unreachable)
[email protected]
-- 11 Kbytes in 1 Request.
# ping alt1.aspmx.l.google.com
PING alt1.aspmx.l.google.com (74.125.202.26) 56(84) bytes of data.
64 bytes from io-in-f26.1e100.net (74.125.202.26): icmp_seq=1 ttl=32 time=50.7 ms
postqueue -f
は通常、配信失敗の根本原因が解決された後、キューをフラッシュするために使用されます。
-f Flush the queue: attempt to deliver all queued mail.
This option implements the traditional "sendmail -q" command, by
contacting the Postfix qmgr(8) daemon.
Warning: flushing undeliverable mail frequently will result in
poor delivery performance of all other mail.
postqueue -i
は、特定のメッセージに使用できます。
-i queue_id
Schedule immediate delivery of deferred mail with the specified
queue ID.
This option implements the traditional sendmail -qI command, by
contacting the flush(8) server.
This feature is available with Postfix version 2.4 and later.
IPv6が永続的に停止している場合は、inet_protocols
を使用してPostfixでIPv6を無効にすることができます。
から http://www.postfix.org/IPV6_README.html :
/etc/postfix/main.cf:
# You must stop/start Postfix after changing this parameter.
inet_protocols = ipv4 (DEFAULT: enable IPv4 only)
inet_protocols = all (enable IPv4, and IPv6 if supported)
inet_protocols = ipv4, ipv6 (enable both IPv4 and IPv6)
inet_protocols = ipv6 (enable IPv6 only)