So, with that whole email kurfuffle with hotmail (and trying to get onto their "nice" list), there was about a 12 hour window (basically while I was asleep) where the email server here was misconfigured with a bad address list, and so it bounced some messages during that time. The logs show only one message from pateron.com bouncing (and it was to you) on the 22nd of October. There were successful deliveries from them on the 17th and earlier though, so it looks like it bounced only once, but it was a hard rejection (saying your address was unknown due to the misconfiguration.) If there were other bounces, they would've had to come from other servers that didn't use patreon.com anywhere in the "from" field.
tl;dr They weren't blocked, there was just a glitch that was fixed the same day it happened. It should be all good now.
