Great work you guys have done with THIS plugin.

1. If the "From Email" domain doesn't have website domain name (e.g.: info@gmail.com, but website is example.com) it may tracked as spam, you should check in spam box. Check the FROM email in Forums > Settings > Emails admin page.
2. Some hosting services, or some Antispam plugins try to cache emails and those are not being sent immediately. You should wait 1-30 min (e.g.: on some GoDaddy hosting plans you receive emails in 45 min).
3. If you're using GMail Fetch services, go to Gmail Settings > Accounts and Import and click on "Check mail now" link to load all new comments from website email server.

This is not wpForo issue. And this doesn't have any relation to 1.4.9 version.

Here are the reasons:

1. The FROM email of your website is not validated by users email providers (gmail, yahoo, hotmail...)

2. Your hosting server has limits or it doesn't send emails immediately

3. Your website emails are tracked as spam in some email providers (gmail, yahoo, hotmail...), users should check in spam box

And dozens of other issues in email filtering and sending processes. these two processes don't have any relation to wpForo.

You can disable "User registration email confirmation" option in Dashboard > Forums > Settings > Features admin page. And enable built-in reCAPTCHA for secure registration in Dashboard > Forums > tools adin page.

I am using the latest version 1.4.9 and still getting the following error:

After registration some users not getting the email to reset the password. But then there are users getting the email. I am totally helpless and don't know anymore what do to since this is a sporadic error.

Where else I can still look to have this fixed?

Thank you sooo much in advance.