# What are the usual suspects of a token authentication problem that Fastly is experiencing?

Receiving an account verification email from Fastly lead to a suspicious email message and upon following the email the token was expired/previously used.

Invalid tokens in emails can result from a non-unique UUID to the best of my knowledge, and as a result, I would never expect this to occur in a production environment. Are there other instances that may provide this same error?

##### Post Metadata
- Posted at: over 5 years ago
- Author title: Software Engineer
- Net upvotes: 1


## Comments
### Comment 1

Hello Daniel, 

Kara from Fastly here. The issue with GMail marking Fastly mail as suspicious is a know issue that we are working to resolve. We apologize for any inconvenience this has caused. This alert can be ignored and you can proceed with the link.

Regarding the token authentication, how long after you received the email was the link used? It is our standard security practice to have these links/tokens expire after 24 hours to prevent any type of unauthorized access.

If you have additional questions, please reach out to Support@Fastly.com and we would be happy to assist, or if you prefer, you can contact me directly at kdrapala@fastly.com. 

##### Comment Metadata
- Posted at: over 5 years ago


#### Reply 1

Hello Kara,

Per my full review, I spoke to an associate over voice call and they informed me that they would send an internal message. Afterwards, I did not receive an email confirmation after the call. I followed up a day later, intending on being a customer, to which she replied that she hadn't gotten an answer internally. It was at that moment when I realized I did not want to do business with Fastly. I informed the associate of my decision and did not receive a reply.

Best,
Daniel

##### Reply Metadata
- Posted at: over 5 years ago
- Author title: Software Engineer



## Related Product
[Fastly CDN](https://www.g2.com/products/fastly-cdn/reviews)

## Related Category
[Content Delivery Network (CDN)](https://www.g2.com/categories/content-delivery-network-cdn)

## Related discussions
- [How well does Trello scale into a larger team?](https://www.g2.com/discussions/1-how-well-does-trello-scale-into-a-larger-team)
  - Posted at: about 13 years ago
  - Comments: 6
- [Can we please add a new section](https://www.g2.com/discussions/2-can-we-please-add-a-new-section)
  - Posted at: about 13 years ago
  - Comments: 0
- [Quantifiable benefits from implementing your CRM](https://www.g2.com/discussions/quantifiable-benefits-from-implementing-your-crm)
  - Posted at: about 13 years ago
  - Comments: 4