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put into the DVR. Make sure the data cables are attached firmly to the RS485 port on the DVR.
11
. Q: Why does the Buzzer keep sounding?
A: Please check to see if motion detection is on and the system has detected motion, make sure the hard drive is
being detected and has sufficient space available, and that none of your cameras have lost video. You can turn off
the buzzer in the Alarm setup option.
9.3 Email server check list
（Web site）
www.163.com
www.163.net
www.sina.com
www.yahoo.com
www.google.com
www.china.com
www.sohu.com
www.163.net
www.163vip.net
www.tom.com
www.263.net
x263.net
263.net.cn
www.qq.com
www.139.com
www.21cn.com
21cn VIP mail
etang.com
elong.com:
9.4 Usage Maintenance
1. Please make sure DVR keep away from heating source.
2. Clean the internal dust regularly, keep DVR aeration well and be easy to heat dissipate.
3. Please not plug in RS-232 and RS-485 when power is on to avoid any damage to the port.
4. Please check the HDD cable and data cable to avoid the cable aging.
5. Please avoid other electronics device interfere video/audio signal of DVR a.s.a.p., or static electricity and
induced voltage damage to DVR.
6. Suggest user replace BNC cable regularly to keep signal input stable.
（The below info only for your ref.）
Email address
@163.com
smtp.vip.163.com
@vip.163.com
smtp.188.com
@188.com
@126.com
@netease.com
@yeah.net
@sina.com.cn
@yahoo.com.cn
@yahoo.com
@gmail.com
@china.com
@sohu.com
@tom.com
@263.net
@qq.com
smtp.139.com
@139.com
smtp.21cn.com
vip.21cn.com
Sender server（25）
smtp.163.com
smtp.126.com
smtp.netease.com
smtp.yeah.net
smtp.163vip.net
smtp.sina.com.cn
smtp.mail.yahoo.com.cn
smtp.mail.yahoo.com
smtp.gmail.com(465/587)
smtp.china.com
smtp.sohu.com
smtp.163.net
smtp.163vip.net
smtp.tom.com
smtp.263.net
smtp.x263.net
smtp.263.net.cn
smtp.qq.com
smtp.etang.com
smtp.elong.com
List 9-3
41
Receiver server（110）
pop3.163.com
pop.vip.163.com
pop.188.com
pop3.126.com
pop.netease.com
pop.netease.com
popx.163vip.net
pop3.sina.com.cn
pop.mail.yahoo.com.cn
pop.mail.yahoo.com
pop.gmail.com(995)
pop.china.com
pop.sohu.com
pop.163.net
pop.163vip.net
pop.tom.com
pop3.263.net
pop.x263.net
pop.263.net.cn
pop.qq.com
pop.139.com
pop.21cn.com
vip.21cn.com
pop.etang.com
pop3.elong.com
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