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What if the mail system is blacklisted? 2011-10-03 06:54:53

Http://blog.chinaunix.net/uid-7411781-id-2939071.html classification: the system operation and maintenance do not know what kind of mail system the landlord is using, is it Exchange? Foreign mailboxes filter spam more strictly, gmail/Hotmail spam uses foreign blacklist lists, these lists are automatically updated, when the mail service within each unit of time to send out the mail beyond a normal range, your IP may be listed in the blacklist, so there is no problem in sending domestic commonly used mailboxes. In general, the emergence of this situation means that there is something wrong with your company's mail server, so you need to check the mail server.

For the landlord of this situation, to provide you with a temporary solution, because the landlord's IP is listed in the blacklist, as long as the mail service appliance really IP is removed from the blacklist.

The following two addresses are spam lists used in foreign mailboxes. You can check that your ip address is not in the list.

one. Http://www.spamhaus.org/lookup.lasso

Enter the public network address of the mail service, and then click looukup

two. Http://www.spamcop.net/bl.shtml

Enter the public network address of the mail service and click the "Numeric iP Address" button to check

If your IP address is on the blacklist, you may choose to remove it from the blacklist, which will take some time to take effect.

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