I remember receiving letters in the mail to remind me it was time to renew my domain name. They were sent around the time my domain was set to expire, except th

I remember receiving letters in the mail to remind me it was time to renew my domain name. They were sent around the time my domain was set to expire, except they were sent from a different registrar. It was written in a way that made it easy to miss the fact that the sender of the letter was not my registrar. IIRC, the letter contained scary language like "you must renew to keep your domain name!". I only noticed the fine print that said it was a solicitation for business because I was curious why this other registrar was contacting me.