We're having an issue where some users will not receive their p/w recovery emails. We have used two different email providers and we still have the same issue. Currently we are using MailGun as the provider. Using the Emailer (Local) Smtp SSL. Any ideas what may cause this?
If you check MailGun, is the email found in the log? If so, then it was sent by NodeBB and possibly the issue lies somewhere between MailGun and the end-user email account (flagged as spam? etc...)
Not really, those happen if you try to process a registration or login with a used csrf token (csrf tokens are lost if the server restarts, by the way).