我有一个装有SpamAssassin（版本：3.4.2）的电子邮件服务器。 几天以来，sa-update不再起作用。我收到此消息：
error: unable to refresh mirrors file for channel updates.spamassassin.org, using old file
error: no mirror data available for channel updates.spamassassin.org
channel: MIRRORED.BY file contents were missing, channel failed
当我跑步时 sa更新-D 我得到更多的输出，然后它停止在此命令：
/usr/bin/wget -q --max-redirect=2 --tries=3 --dns-timeout=20 --connect-timeout=30 --read-timeout=300 -O MIRRORED.BY -- http://spamassassin.apache.org/updates/MIRRORED.BY
然后我尝试了：ping spamassassin.apache.org
但这也不起作用。
当我运行traceroute spamassassin.apache.org时，我得到以下结果：
3 core1.fra.hetzner.com (213.239.245.250) 71.302 ms core4.fra.hetzner.com (213.239.245.33) 3.699 ms 3.701 ms
4 core8.fra.hetzner.com (213.239.252.9) 3.771 ms 3.945 ms core8.fra.hetzner.com (213.239.245.86) 3.706 ms
5 core32.hel1.hetzner.com (213.239.224.169) 24.961 ms 23.864 ms core31.hel1.hetzner.com (213.239.224.150) 23.747 ms
6 ex9k1.dc2.hel1.hetzner.com (213.239.224.134) 23.756 ms ex9k1.dc2.hel1.hetzner.com (213.239.224.138) 24.097 ms ex9k1.dc2.hel1.hetzner.com (213.239.224.134) 23.766 ms
7 * * *
8 * * *
9 * * *
10 * * *
11 * * *
12 * * *
13 * * *
14 * * *
15 * * *
16 * * *
17 * * *
18 * * *
19 * * *
20 * * *
21 * * *
22 * * *
23 * * *
24 * * *
25 * * *
26 * * *
27 * * *
28 * * *
29 * * *
30 * * *
当我在本地PC上运行ping时，它可以工作。 在本地PC上运行traceroute时，得到以下结果：
4 89.15.232.2 (89.15.232.2) 80.266 ms 80.063 ms 89.564 ms
5 195.71.142.97 (195.71.142.97) 90.488 ms 90.247 ms 90.064 ms
6 bundle-ether1.0004.prrx.02.fra.de.net.telefonica.de (62.53.8.187) 99.048 ms 69.947 ms 70.551 ms
7 176.52.252.28 (176.52.252.28) 69.611 ms 69.773 ms 70.101 ms
8 5.53.4.29 (5.53.4.29) 70.403 ms 70.365 ms 71.127 ms
9 ffm-b4-link.telia.net (62.115.37.18) 70.263 ms 69.364 ms 69.756 ms
10 ffm-bb3-link.telia.net (62.115.120.1) 98.802 ms ffm-bb4-link.telia.net (62.115.120.7) 99.935 ms 89.629 ms
11 s-bb3-link.telia.net (62.115.138.236) 99.814 ms s-bb4-link.telia.net (62.115.138.104) 99.237 ms 109.191 ms
12 hls-b1-link.telia.net (62.115.123.31) 90.674 ms 98.865 ms 90.416 ms
13 hetzner-ic-326014-hls-b1.c.telia.net (213.248.66.77) 99.728 ms 90.734 ms 91.101 ms
14 core32.hel1.hetzner.com (213.239.224.26) 90.670 ms 89.663 ms core31.hel1.hetzner.com (213.239.224.38) 90.233 ms
15 ex9k1.dc2.hel1.hetzner.com (213.239.224.138) 90.169 ms 89.855 ms ex9k1.dc2.hel1.hetzner.com (213.239.224.134) 99.952 ms
16 static.32.24.216.95.clients.your-server.de (95.216.24.32) 99.191 ms 99.186 ms 90.604 ms
当我在服务器上运行iptables -L时，我得到：
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
我该怎么做才能使更新再次起作用？ SpamAssassin是否阻止了我的服务器？