: Does being blacklisted by Spam Cannibal effects SEO I have checked old post regarding being blocked by email spam agents and it states that SEO shouldn't be effected. https://productforums.google.com/forum/#!topic/webmasters/msa

@Jamie184

You linked to a very old post and likely not correct.

Keep reading, there is good news here!

Google, at least, will check black-lists and negatively down-grade a sites performance for appearing on some black-lists. Which black-lists are used is not entirely clear. What I do know is that the black-lists with longer expiration are ignored. For example, some black-lists will retain a record for as long as a year. The good new is this. These lists are almost always ignored except for some networks such as AT&T and only used for e-mail spam indication. Appearance on a black-list goes to a sites trust rank metrics.

Now the good news!

Google understands that many innocent sites can end-up on a black-list and gives some level of grace. If you can clean-up the sites appearance on the black list, this can help. Short appearances on a black-list will not hurt. However, appearing on several black-lists for longer periods and repeatedly will.

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