WetGeek Sorry, it's been a busy weekend. My understanding is there may be issues sending to or receiving emails at your personal domain, which is what Open Collective is tied to, correct? If so, yeah, a secondary or backup email address to send to would be helpful.
I think you may be able to set a second email for Open Collective; worth looking in to. I don't deal with that part of the operation myself, so I'm not entirely sure what we can see on our end or how resending might work, but I can follow up with people tomorrow and find out.