If you are looking at hiding your IP address, you should have a look at this new device called iTwin Connect. It lets you connect securely to networks even if your using a public wifi and you can change your IP to another country if needed.
In India, almost everyone used to have a rediffmail email account. That seems to be in the dying stages. I doubt if rediff gets any new email accounts been created on a regular basis.
There are plenty of people who have been arguing over the true definition of what “backing up ” is and what “archiving” is. Some say that “email backup” is merely short-term reprieve and “email archiving” is the only long-term solution. Others say that “backing up” does not satisfy legal...
Since you are using MailChimp, you might as well use their Forward to a friend merge tag. See the example here.
Try this. It might help you solve the issue.
Also ensure that you are only using tables. Do not use div tags in your email's html code since Outlook does not handle div tags well.