Send mail wasn't working for 2 days... is there a place to find unprocessed new user registrations?

[rockymountainmotos]

I upgraded to 2.3.1 and it broke my send mail, so I have about 50 users that tried to register but never received their confirmation emails. Is there a place to access these and resend them? Thanks.
Send mail wasn't working for 2 days... is there a place to find unprocessed new user registrations?

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