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Sendgrid API Key Invalid

  • August 25, 2019
  • 13 replies
  • 71 views

I’m trying to initialize the Sendgrid block. I get an API key from the Sendgrid site. When copied to airtable, it’s invalid. On the API key page, sendgrid mentions I need to “verify sender details” before using the email API. I verified an email, but the popup still occurs. Maybe this is a reason. Unfortunately, Airtable posts won’t allow supplementary images.

Thoughts on why this happens?

13 replies

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  • Participating Frequently
  • 5 replies
  • August 26, 2019

Having the same problem.

I am Trying to integrate Sendgrid and I keep getting invald api key when I past the key generated from sendgrid into airtable block…


  • Participating Frequently
  • 5 replies
  • August 26, 2019

I am also getting the same error.

I had to make a new API key because I can’t find the old one. I am getting “invalid API key” when I try to enter the new one.


  • New Participant
  • 1 reply
  • August 26, 2019

I am having the same issue, “invalid api key”


  • Author
  • New Participant
  • 1 reply
  • August 26, 2019

Just retried and works now.


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  • New Participant
  • 4 replies
  • April 9, 2020

It’s funny I have the same problems as you guys :thinking:

I tried 2 times to generate a new key.
I have the same error


  • New Participant
  • 4 replies
  • April 10, 2020

It’s funny I have the same problems as you guys :thinking:

I tried 2 times to generate a new key.
I have the same error


I have the same problem today. Did you find the solution please ?


  • New Participant
  • 2 replies
  • April 10, 2020

Same issue ! It makes me crazy…


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  • Inspiring
  • 192 replies
  • April 10, 2020

Hi everyone, sorry for the inconvenience! SendGrid now requires a verified sender email for accounts created after April 6, 2020: https://sendgrid.com/docs/ui/sending-email/sender-verification/

We’re updating the block to work properly with this new rule, hoping to have it fixed today. We’ll let you know once it’s fixed in this thread.


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  • Inspiring
  • 192 replies
  • April 10, 2020

This should be fixed now, please let us know if you’re still running into issues.


  • New Participant
  • 2 replies
  • April 11, 2020

It works !
Thank you so much


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  • New Participant
  • 4 replies
  • April 13, 2020

@Kasra
:tada: Yeah!
Problem solved

Thank you!


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  • Inspiring
  • 366 replies
  • July 13, 2020

The problem still shows up, but goes away after a couple of minutes. Apparently the processing is delayed for a bit…

The exact error reads: “Invalid SendGrid API key or sender email address.”

Grab a coffee and hit the button again. :slightly_smiling_face:


  • New Participant
  • 1 reply
  • November 10, 2022

Hi, I am still experiencing the same issue. The sender is verified, any suggestion?