No thanks necessary — just remembered that you’d been having an issue with bbPress and BuddyPress, and wasn’t sure whether you’d got it all to work.
So far as my previous question is concerned, I didn’t mean which program is sending out your emails. I meant through which function. I think, though, we can assume from the fact you didn’t realize that that you are probably using the default wp_mail function.
This is where it matters who your host is. The wp_mail function is very hit and miss with many hosts, so it’s quite common for lots of emails never to be sent out. So trying to re-send by this method won’t help you.
What I’d do is contact your host and ask about whether they recommend using SMTP instead of wp_mail for emails, and ask them what the relevant settings are.
Then install a plugin like WP Mail SMTP, which will divert your email through SMTP instead.
Once you’re sure you have it working, I would also install the Simple User Password Generator plugin.
You can then send out password details by going into each user’s page, using the password generator button to create a new password (in case any unintended person has got hold of the original one) and use the setting there to email this out to the user.
