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- iRedMail 版本号：iRedMail-0.9.5
- 使用哪个数据库存储用户帐号（OpenLDAP，MySQL，PostgreSQL）：MariaDB
- 使用的 Linux/BSD 发行版名称及版本号：centos 7.2
- 与您的问题相关的日志信息：如下
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ClamAV update process started at Mon Aug 21 18:08:24 2017
nonblock_recv: recv timing out (30 secs)
WARNING: getfile: Download interrupted: Operation now in progress (IP: 203.178.137.175)
WARNING: getpatch: Can't download main-58.cdiff from database.clamav.net
nonblock_connect: connect timing out (30 secs)
Can't connect to port 80 of host database.clamav.net (IP: 211.239.150.206)
Trying host database.clamav.net (27.96.54.66)...
nonblock_connect: connect timing out (30 secs)
Can't connect to port 80 of host database.clamav.net (IP: 27.96.54.66)
Trying host database.clamav.net (120.29.176.126)...
nonblock_connect: connect timing out (30 secs)
Can't connect to port 80 of host database.clamav.net (IP: 120.29.176.126)
Trying host database.clamav.net (219.94.128.99)...
WARNING: getfile: Unknown response from database.clamav.net (IP: 219.94.128.99)
WARNING: getpatch: Can't download main-58.cdiff from database.clamav.net
Trying host database.clamav.net (219.94.128.99)...
WARNING: getfile: Unknown response from database.clamav.net (IP: 219.94.128.99)
WARNING: getpatch: Can't download main-58.cdiff from database.clamav.net
WARNING: Incremental update failed, trying to download main.cvd
nonblock_recv: recv timing out (30 secs)
WARNING: getfile: Download interrupted: Operation now in progress (IP: 203.178.137.175)
WARNING: Can't download main.cvd from database.clamav.net
Trying again in 5 secs...