Gmail – Deleting previous recipients from Gmail

Filters are not processed when you mark a message as not spam. They are only processed when the message first arrives in your mailbox.

You have two choices:

1. Manually forward them when this happens.
2. Use a second account which reads the mail from this account via POP3 and has all of the forwarding rules you defined before.

The first option is self explanatory. It's important to note that these kind of forwards are not the same as a forward invoked by a filter. The two main differences are that you will see quoted text with the former, and the 'to' address will be different as well.

The second option involves setting up another email address and exporting (and deleting) all of your filters from your old account and importing them into that new account. Then set up a filter on the top of the new account which will never send messages to spam. Next, set up the new account to read the mail from the old account using POP3. Since the email will be read via POP3, it will read mail that was previously marked as spam but was then moved to the Inbox. The only disadvantage with this method is that it won't be instantaneous. You could try to increase the frequency the POP3 is read, but that's about it.

When you add a contact to a group you choose the email address that you want to add to it and not the actual contact.

When the contact are displayed in the group list you will have the email you have chosen and +x depending on how many other email address the person has, however, when you send an email to that group it will be only sent to the email address you have added to the group, not all the emails belonging to the contact.