Mailroom send rate limit

Categories Mailroom

Large volumes of email can cause technical issues when they're all sent at once. Some Internet Services Providers (ISP) may also identify the campaign as spam if they receive a very large number of emails from the same source within a short period. To avoid this issue, Mailroom steadily sends out your campaign at a rate of around 200 emails per hour.

This time-delay is important to factor into a campaign, particularly when announcing any time-sensitive offers. For example, if a campaign is started at 9am to announce a limited special on your website at 10am, only the first 200 recipients will receive the email in time – so take this into account when you hit send.

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