How many notes/emails can I send?
You can send as many emails as you want. The number of notes/emails is unlimited.
Can I set an alias for the sender email?
Yes, you can set if you want an email alias and it will appear as the name on the sending
Why am I not receiving any emails?
Sometimes the emails are marked as a SPAM by some servers.
Make sure to check your SPAM folder or if the email server has any SPAM configuration enabled.
In order to not miss any emails make sure to white-list the sender email address.