How many emails can I send per dedicated IP address before needing another one?
Summary
What email marketers say12Marketer opinions
Email marketer from Web Tribunal explains that using a dedicated IP guarantees a much better deliverability rate, provided you maintain a high-quality sender reputation. This can include increasing volume slowly and ensuring your email list is opt-in only.
Email marketer from Quora user Emily Carter highlights that the number of emails depends on your engagement metrics. If you are seeing good open rates, you can send more. Ensure that you avoid spam traps as this can seriously impact the amount of email you are able to send.
Email marketer from Mailjet shares that a dedicated IP is like moving to a new house. You need to build a good reputation by sending a consistent volume of emails that your audience wants, and gradually increase the volume you send, following a dedicated IP warm-up schedule.
Email marketer from ActiveCampaign explains that a dedicated IP lets you control your own sender reputation, meaning you're not impacted by the actions of other senders. The volume you can send depends on how well you manage that reputation.
Email marketer from Twitter user @EmailGuru advises to ensure you are following best practice when starting with a new IP. Make sure you are sending genuine emails to real recipients to build up the reputation of your dedicated IP.
Marketer from Email Geeks shares that at more than 400K per day, they consider a second dedicated IP to help speed things up, especially when sending to European + global MBPs.
Email marketer from stackoverflow highlights that you should limit the amount of emails you send on a per connection basis and per time slice. This can reduce risk of hitting any throttling issues with the mailbox provider and will allow your system to continue sending at optimum rates.
Marketer from Email Geeks shares their rule of thumb is 75K per hour, but it is possible to send way more.
Email marketer from Reddit user /EmailNoob suggests starting with a small batch of highly engaged subscribers, then gradually increasing the sending volume over a few weeks. Actively monitor the deliverability and adjust the sending schedule based on feedback from mailbox providers.
Email marketer from Neil Patel Digital emphasizes that a dedicated IP allows you to build your own reputation as a sender, separate from other users of a shared IP. The number of emails you can send depends on how quickly you can build a good reputation with mailbox providers by sending consistent volume and engaging content.
Email marketer from Gmass suggests starting with small batches of 50 - 100 emails per day. He adds that the most important part of building your dedicated IP reputation is engaging with your audience and warming up your IP.
Marketer from Email Geeks prefers having an IP per 500k total mail per day for redundancy, while acknowledging 2M per IP is doable.
What the experts say4Expert opinions
Expert from Spam Resource explains that when warming up an IP, you should focus on engagement. Send to your most engaged users first and monitor your results, gradually increasing the volume as your reputation improves.
Expert from Email Geeks explains their threshold for considering adding a new IP is around 1M / day / IP, but really is 2M.
Expert from Word to the Wise explains that during IP warm up you should be actively managing your email lists. Prune out unengaged contacts, correct typos and other errors and segment your lists before you even start.
Expert from Email Geeks says that like Laura, they say 2M/day per IP. Above that, you’re likely to see delays.
What the documentation says4Technical articles
Documentation from Google Postmaster Tools recommends that you should gradually increase sending volume to Gmail users. Sending too much email too quickly can negatively impact your sender reputation and lead to deliverability issues.
Documentation from SparkPost recommends a gradual increase in sending volume. Start with your most engaged users and ensure they are expecting your messages. Monitor metrics like bounces, complaints, and engagement to assess the health of your sending reputation.
Documentation from SendGrid explains the key to properly warming up your IP address is to gradually increase your sending volume as consistently as possible. SendGrid recommends starting small and increasing the volume daily. They provide a sample ramp-up schedule, starting with sending to a small number of recipients and increasing significantly each day, while monitoring your sending reputation.
Documentation from Microsoft highlights that you should manage your reputation and not send spam and abuse emails as this will greatly reduce the amount of emails you are able to send. They recommend ensuring you authenticate your email.