HubSpot Ideas


Make Throttling Available for Email Newsletter Sends

By email throttling I mean controlling the amount of email messages sent to one ISP or remote server at one time.  


Sometimes ISPs block messages when a high volume is sent by one sender at one time because they might be concerned its spam. 

Since I use dedicated IPs, a large send cannot be spread out over multiple IP addresses, which is not ideal. Thus, I would like to be able to throttle emails out at different speeds to compensate for this. 

I know send rate limits are available through Amazon SES so it is just a matter of building that integration into Hubspot as well.

I had this feature on Marketo and it was useful to be able to test and monitor this factor.

7 Replies

Agreed 1000% 


yes, we would definitely like the ability to throttle emails too



I would like to see email throttling as an option too - but for a slightly different reason:

Since COVID our marketing lists are growing at some rate (we've grown our marketing database by 50% since lockdown began). Due to the HS unique parameters that are added to all links, it is not always practical to link-through to smaller micro-sites. The use of the unique parameter essentially ensures each request of the website is a new cache request and often smaller sites cannot cope with the large volume in a short time period. 

It would be a nice option to say send 250k of emails over a 24 hour period so that everyone didn't receive, open and click through at the same time.


Marketo is working on this functionality, they said its an issue for their customers with large contact lists. 


need this!


Any update on this?


Would love to see this implemented. We send to a lot of associations and brokerages that have spam filters like Barracuda in place. This would prevent flagged emails and emails being automatically sent to promotional inboxes.