郵件收不到。status=deferred（與 127.0.0.1 失去連接

我有一個 MiaB 郵箱，裡面有大約 30 個郵箱。此錯誤在 /var/log/mail.err 中彈出，但沒有其他資訊。

WARNING! Error in process_request eval block: /usr/sbin/spampd: write error saving data

我怎樣才能追踪它並修復它？我相信當這種情況發生時人們不會收到他們的電子郵件。

這是當使用者將帶有附件的消息發送到同一伺服器上的另一個郵箱時：

Jun 15 14:52:45 ubuntu opendkim[23335]: domain.com: key data is not secure: /home/user-data is writeable and owned by uid 1001 which is not the executing uid (111) or the superuser
Jun 15 14:52:48 ubuntu postfix/qmgr[10579]: E763B5EFA4: from=jason@domain.com, size=3804954, nrcpt=1 (queue active)
Jun 15 14:52:48 ubuntu dovecot: lmtp(17671): Connect from 127.0.0.1
Jun 15 14:52:48 ubuntu dovecot: lmtp(17671): Disconnect from 127.0.0.1: Connection closed (in DATA)
Jun 15 14:52:48 ubuntu spampd[17504]: WARNING!! Error in process_request eval block: /usr/sbin/spampd: write error saving data
Jun 15 14:52:48 ubuntu postfix/lmtp[17595]: E763B5EFA4: to=sylvia@domain.com, relay=127.0.0.1[127.0.0.1]:10025, delay=14, delays=13/0/0.01/0.2, dsn=4.4.2, status=deferred (lost connection with 127.0.0.1[127.0.0.1] while sending end of data -- message may be sent more than once)
Jun 15 14:52:50 ubuntu postfix/submission/smtpd[17665]: disconnect from unknown[135.0.8.211]
Jun 15 14:53:27 ubuntu postfix/smtpd[17685]: warning: hostname nsg-static-162.165.72.182.airtel.in does not resolve to address 182.72.165.162: Name or service not known
Jun 15 14:53:27 ubuntu postfix/smtpd[17685]: connect from unknown[182.72.165.162]

有什麼想法嗎？

在 centos 6.5 上禁用 ipv6 似乎已經消除了這個問題。

引用自：https://serverfault.com/questions/699111