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Month: July 2019

HomeBlog2019July

Fixing IP and SMTP blacklisting caused by spam emails

Posted on July 5, 2019, updated on September 30, 2019 by RunTimeAsiaAdmin

One of our clients notified us that they were facing CAPTCHA challenges/images on a more and more frequent basis during regular web surfing. An ever-increasing share of their outgoing emails was also being rejected as spam. A quick look-up at http://cbl.abuseat.org showed that their public IP had been blacklisted for partaking in a bot net […]

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