So, I was excited to create a Zapier that would create new cards in Infinity based on whether a gmail email had a specific label… I got everything set up… Then I activated the Zap and got this…
So how do I get specific gmails (based on a label) to Infinity?
I was getting this issue the other day, I’m new to the software.
I’ve figured out the issue now and it is a limitation imposed by Google/Zapier. It appears that you can’t use a user email from Google in Zapier as the trusted apps are limited for nor business emails. You will need to use a G-suit email, I have a few which I’m going to try with tonight.
I’m still troubleshooting this and I may look into Outlook as an option for this. 
I hope that that helps.
Hello @landofawz and @frazerslife! Unfortunately, we have noticed this issue lately as well, and it seems to be the result of some new updates in Gmail/Google. It looks like the GSuite users will be able to create Zaps with Gmail but personal Gmail users will not.
We will continue to investigate this, but since it’s a new rule by Google, we’re not quite sure if it will be in our hands to change it. 
I noticed this too today! It bummed me out, but I fixed it like this:
Gmail -> An Evernote Infinity folder (Evernote is Gmail approved)
New note in Evernote Infinity folder -> Infinity
Took a little longer to set up, but it works for what I needed it for 