Why are my campaigns being throttled?

To begin answering this question, we need to look at how the sending infrastructure works for an account at TotalSend. Any user of TotalSend’s service will have an IP address that is associated with their account and it is from this IP address that the email campaigns they create will be sent out. Most ISPs will view a new IP address as suspiciously as a blacklisted one and will go with a “untrustworthy until proven innocent” approach, which is understandable as they have no way of knowing if safe email or spam will be sent through that IP until it has begun sending. Because of this, it is not in the best interests of the sender on a new IP to send large quantities of email from the word go as this looks like the behaviour of a spammer who is attempting to get out as much email as possible on a new IP address because they damaged their last one with blacklists.

What can be done to gain the ISP’s trust?

The answer is simple. In order to gain the trust of an ISP when sending from a new IP address, a sender needs to limit the amount of emails they send initially to show that they intend to send large quantities of email but are not doing so just to send spam. For this reason, TotalSend “throttles” a new account’s campaigns by limiting the number of emails that get delivered over a period of time. Once the IP address is “warmed up” and the ISPs are comfortable with the quantity and quality of emails being sent to their server, TotalSend can remove the throttle on a new IP and it can begin sending to entire lists without delay.

Can I control my account’s throttling?

You can monitor the amount of emails currently sent in your campaign from its overview page, as well as how many still need to be sent. TotalSend manages the throttling of IPs automatically and does not require you to set anything up or manage it at all. However if your account is throttled and you feel it necessary to increase the number of emails going out, you can log a support ticket with your request and our deliverability team will review your current IP reputation and advise you on your options.