The question: when using a temp email addy, is there a “spam folder” I don’t know about?
Back story: The other day I tried to sign up for the dailyish from mobile phone, logged out, created a temp email address. Clicked on the first “freebie” on the list, entered temp email address. Nothing happened. No email, no notification, just silence.
In a nutshell, temporary email is an email address that you used for a short period and then discard. Note that I said email address. The key difference here between a regular email address and temporary email address is that you are not just deleting an email, you are throwing away an entire email address.
That's a really wide range of possible emails. There are thousands of ways to do temporary emails - some involve making new emails, others involve altering old ones temporarily... lots of possibilities.
To be able to troubleshoot, I would need to know more about what style YOU are using.