Solved! Solved: Go to Solution.
If you are using Outlook for your mail you don't have to do anything if you are already receiving Optus mail on your computer. Is this Outlook from Microsoft Office or 365?
Importantly the process (of setting up a seperate email) doesn't affect the Optus account at all. You can set a GMail up tonight and have a play and switch back to Optus at any point if you feel its not working for you. General process is:
1) Set Up GMail Account.
2) In Gmail Settings set it to import all current emails from Optus
3) In Gmail Settings set it to import all new emails that go to the Optus address (realtime)
* Don't change the gmail reply address. The point is you want to get everyone using your new address. Any replys to the gmail address obviously go the the GMail account
* See the tip at end for getting list of all email addresses you've ever contacted.
4) Optionally set the new Optus emails to have a 'tag' (or colour code in GMail) makes it very easy to see whats still coming via Optus.
5) Update important accounts you can remember with the GMail address (banks, utilities, security, subscriptions, etc.)
6) Email your contacts with the new address.
7) Roll through the last 6 months of Inbox and pick out any emails that you reckon need the email updated.
Think about any annual events that need the email address updated (Rates? Insurance? Subscriptions?)
9) Monitor in GMail what's coming via Optus and whats coming to Gmail direct (all via GMail using the tag you setup before) and you should see almost nothing to Optus soonish.
10) Stop using Optus Email
While you're at it, set up 2 factor authentication in GMail (and a recovery alternate address) for much better email security. You can also link two Gmail addresses to swap between so you and your wife could each have their own if you wanted.
Note GMail also has very effective tabs (for example all sales related stuff ends up under "Promotions" and can be ignored as wanted. When you first start though there will be a few misfilings so check each tab. Any issues just drag and drop the email to the correct tab and select "Always do this for this email". Sorts things out very quickly.
As a last tip on getting your contacts updated (after you have imported your emails from Optus) you can switch to the Google Contacts Page. Bottom Left is an option called "Other Contacts" which is just a list of every email address you've intereacted with (Mine had 427 addresses). You can select them all then hit "Export" and "All Selected" and you've got a stright up list to browse through and know you need to update (Most of them you won't.)