Whilst there is a minimum requirement of one email address for outgoing email messages and one for incoming email messages, there are no limits to how many can be used. If you are using your ISP for outgoing emails there is only one outgoing mail server but for incoming emails it depends on the factors outlined below.

If you would like to learn a bit more about email addresses and mail servers to help with deciding when to use autoresponder emails as apposed to regular emails click on the blue text above.