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Start IP address : Start of IP address range to be checked in DNS blacklist
End IP address : End of IP address range to be checked in DNS blacklist
Email address : Email address that will be notified for the blacklist check report when completed usually takes less than 1 minute.
* Maximum number of IPs to scan is class C subnet (255 IP address)
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Blchecktool.com is used to check IP address range in DNS blacklist database (rbl) and find if any IP address is registered as a spam source in DNS blacklist database, because e-mails may be rejected and bounced by recipients if source email server IP address is registered as spam source.
E-mail servers administrators should be aware for this issue to avoid losing business emails for their organizations and also they should use anti-spam software to eliminate any spam e-mails from going out from their servers.
In case of accidently IP registered as spam source then e-mail administrators should remove IP address from DNS blacklist and eliminate the cause of this issue from their side.
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