Use of Free Domains on ImprovMX
Although you are free to use almost any domain of your choosing on ImprovMX, certain TLDs (Top-Level Domains) are associated with increased levels of abuse and spam and so we made the decision to disallow them on our service going forward.
The list of domain TLDs not currently allowed is as follows:
.tk
.ml
.ga
.cf
.gq
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