Sometimes, the software you are using needs to add the email verification. My teammates just recommended me https://temp-mail.org, which creates a temporary address and an inbox, perfect to make this quick tests.
They offered an API to create it, but it has some limitations. I just wrote some code around it, with Robot Framework, and found that it’s very straighforward to use. Here and example:
It is quite easy to browse in the inbox, just use xpath and search for the title, like to CONFIRM_EMAIL_THREAD. I have being use this for a while and since now, didn’t get any problem with the usage with automation
PS: Wrote this code basically copy&paste. Not sure if it’s running