Rate limit headers not in response about sendgrid-go HOT 7 CLOSED

Sorry, I actually found the documentation:

10,000 requests/sec is the maximum rate at which you may call v3 Mail endpoint

from sendgrid-go.

Hello @jonathan-short,

It looks like just the mail/send endpoint does not return the rate limit information. I'm investigating and I'll let you know what I find.

Thanks!

from sendgrid-go.

Hi @jonathan-short,

Apologies for the delay. I have confirmed that the Rate Limit information is not returned on the mail/send endpoint.

With Best Regards,

Elmer

from sendgrid-go.

So this is

• closed as "works as designed" or
• closed as fixed?

In case of "fixed": I'm still observing this.
In case of "as designed": what's the reasoning behind this? The rate limit for sending mails is also not documented. How should we know? Is sending mails unlimited?

from sendgrid-go.

Still, it would be nice if the headers were returned as documented. I assume that a 429 will still be returned if we hit the rate limit. Will the rate limit headers be returned too in that case?

(I guess the headers could plausibly be omitted for bandwidth reasons, since there are obviously a huge number of mail sends happening.)

I've also been wondering if the client libraries (Python, in my case) have built-in support for retrying when the rate limit is hit. My guess is no, since I couldn't find the number 429 in the library code.

from sendgrid-go.

Sorry, I actually found the documentation:

10,000 requests/sec is the maximum rate at which you may call v3 Mail endpoint

This does not appear to be in the linked document anymore.

This is confusing because https://sendgrid.com/docs/API_Reference/Web_API_v3/How_To_Use_The_Web_API_v3/rate_limits.html says that

All calls within the Web API are allotted a specific number of requests per refresh period. Each Web API request returns the following header information regarding rate limits and number of requests left.

and https://sendgrid.com/docs/API_Reference/Web_API_v3/Mail/index.html says

This endpoint allows you to send email over SendGrid’s v3 Web API

but also this endpoint does not appear to return the rate limiting headers in the example request on the page.

from sendgrid-go.

Not sure exactly why it's not returned, but here's where the 10k limit appears: https://sendgrid.com/docs/for-developers/sending-email/v3-mail-send-faq/#are-there-limits-on-how-often-i-can-send-email-and-how-many-recipients-i-can-send-to

For further clarity, best to open a support ticket.

from sendgrid-go.