How many IP addresses should be used for an email marketing campaign of 50k emails?
Summary
What email marketers say11Marketer opinions
Marketer from Email Geeks states that sending 50k/campaign is tiny, if sending from 500 IP addresses.
Email marketer from GlockApps highlights the importance of maintaining a healthy IP address reputation. If you are using dedicated IPs you will be responsible for this.
Email marketer from ReturnPath advises that you slowly warm up the IP address by initially sending to your most engaged contacts and slowly increasing volume. This will help improve your IP address's reputation.
Email marketer from ActiveCampaign indicates that for sending 50,000 emails, using a dedicated IP is generally recommended as it gives you more control over your sender reputation. However, they also mention shared IPs are suitable for smaller volumes.
Email marketer from SendGrid recommends using a dedicated IP for sending high volumes of email, which includes campaigns around 50,000 emails. They also stress the importance of warming up the IP address to build a positive sender reputation.
Email marketer from MailerLite advises that if you're sending 50,000 emails, it's essential to warm up your IP address gradually. They recommend starting with a smaller number of emails and slowly increasing the volume over a few weeks to build a positive reputation.
Marketer from Email Geeks shares that at Oracle, clients are sending up to 100 MM/Month on a single IP.
Email marketer from Litmus recommends carefully considering shared IP risks. It may be worth it to use a dedicated IP so that you are not affected by others that share the IP address.
Email marketer from Mailjet explains that for sending volumes like 50,000 emails, a dedicated IP address is a good starting point. They recommend warming up the IP gradually to establish a good sending reputation.
Email marketer from ExpertSender suggests a dedicated IP address is suitable for senders who send consistently large volumes. For a campaign size of 50,000, they would recommend a dedicated IP address, as it can help improve email deliverability and sender reputation.
Email marketer from Stack Overflow community discusses that one IP address can handle 50k emails, provided that the IP has a good sender reputation. Important is to warm up the IP address before sending the full volume to avoid deliverability issues.
What the experts say3Expert opinions
Expert from Spamresource explains that IP addresses gain reputation over time and that you should use IP addresses with good reputations. They recommend that if you are using new IPs you should be prepared to spend weeks warming the IP before sending high volume.
Expert from Email Geeks explains that using 500 IPs to send 50K messages is basically the definition of snow shoe spam.
Expert from Word to the Wise, Laura Atkins, explains that with good engagement and reputation, it is possible to send high volumes, but if you are using a new IP you should carefully monitor volume. If the IP has low reputation, then it is best to start by sending to low volume. This is because engagement rates may be impacted.
What the documentation says4Technical articles
Documentation from AWS SES states that for sending 50k emails, you'd likely want to consider using a dedicated IP or a pool of dedicated IPs, depending on your sending frequency and reputation management strategy. It also depends on the reputation of the sending IPs.
Documentation from SparkPost suggests a warm-up schedule. For a new IP address, they advise starting with small batches (e.g., 500-1,000 emails) and gradually increasing volume daily. For 50k emails, this might involve scaling up over a couple of weeks.
Documentation from Google Postmaster Tools emphasizes building and maintaining a good sender reputation by using a dedicated IP for consistent, large-volume sending like 50,000 emails, and following authentication best practices.
Email marketer from Microsoft SNDS focuses on the importance of IP reputation in their documentation. Volume senders need to ensure their dedicated IP addresses do not have low IP reputation as it will hinder deliverability.