The forum supports multiple email addresses for when you’re using the RIOT forum via email.
Your current email addresses are visible in your account preferences and scrolling down to the Email Addresses section:
The primary email address is what you use for login and where you will receive the email notifications from the forum at.
These can be used as alternative addresses to email the forum from. Any posts created by these email addresses will be associated with your account.
You can’t login with these addresses for security reasons.
If there are other forum accounts set up with any of your secondary email addresses they will show up as duplicate. You can request a merge by clicking the Merge Accounts button.