How to warm up email sending after migrating to a new ESP with the same domain and shared IPs?
Summary
What email marketers say9Marketer opinions
Email marketer from Email Marketing Forum explains that the shared IPs in the new ESP are 'new' to your domain. The poster recommends gradually increasing volume, and carefully monitoring deliverability. Pay special attention to hard bounces, and complaints. Keep the lists clean.
Email marketer from Mailchimp advises warming up new IP addresses to build a positive reputation with ISPs, especially when migrating to a new ESP. The recommendation is to start with small batches of emails to engaged subscribers and gradually increase volume over several weeks.
Email marketer from GlockApps recommends a specific IP warm-up strategy, increasing volume in defined increments over a number of days. This will allow the sender to establish a reputation with the ISPs. This also allows time to monitor deliverability to ensure compliance with sending limits.
Email marketer from Reddit suggests that when using the new ESP's shared IPs, you should treat them as new and follow the recommended IP warming schedules. Monitor sender reputation metrics closely using tools like Google Postmaster Tools.
Email marketer from ActiveCampaign recommends a phased approach to IP warm-up after migrating to a new ESP, even with a reputable domain. They advise starting with your most engaged subscribers and gradually increasing volume based on positive engagement signals.
Email marketer from EmailOctopus states that warming up is always needed when switching to a new ESP, even with existing domains. Start with a small segment of highly engaged users and scale up sending slowly while monitoring bounce rates and spam complaints.
Email marketer from Hubspot outlines the IP warm-up process when you migrate to a new ESP. The marketer notes that you should segment your list, start with your best contacts, send consistently, and monitor your email performance. The recommendation is to send good emails.
Email marketer from GMass shares that when switching ESPs, warming up your IP address is paramount. Start by sending to your most engaged subscribers and carefully monitor your bounce and complaint rates. A slower start will help.
Email marketer from Email Geeks shares that Google and Yahoo now focus on the DKIM signing domain, which will change when moving to a new platform, requiring a warmup. Offers to share tips based on experience with large warmups.
What the experts say6Expert opinions
Expert from Email Geeks explains that moving to a new ESP with the same warmed-up sending domains still requires a warmup to introduce the new domain/IP combination to filters, as this will affect delivery. Resources provided will also help.
Expert from Email Geeks states that any major infrastructure change, including new IPs or envelope domains, necessitates a warmup process.
Expert from Word to the Wise shares advice on warming up email sending at Gmail. Even with a pre-existing domain reputation, you should start slow to establish a new sending profile with Gmail. He suggests a specific gradual volume increase strategy.
Expert from Word to the Wise suggests that the warmup process isn't just about sending emails. It’s about establishing a new line of communication with mailbox providers after an ESP migration. The author emphasizes the importance of consistent, engaged communication.
Expert from Email Geeks advises that warmup can be shorter when moving a domain to shared IPs. They recommend following the new ESP's advice, as they have the most data on what currently works. Starting at 3-5K emails is a reasonable approach these days.
Expert from Spam Resource outlines that IP warming is crucial after an ESP migration, even with a good domain reputation. It's necessary to introduce your sending habits from the new IP range to ISPs and mailbox providers. The article details a step-by-step approach to IP warming.
What the documentation says5Technical articles
Documentation from Google shares that Google Postmaster Tools provides valuable insights into your domain and IP reputation. Monitor these metrics closely during and after ESP migration to ensure continued deliverability to Gmail users.
Documentation from Microsoft SNDS tells that monitoring your IP health in Microsoft's Smart Network Data Services (SNDS) is crucial during and after the ESP migration. This tool provides valuable insights into your sending reputation with Microsoft email services and helps identify deliverability issues early.
Documentation from SendGrid explains that even with a good sender reputation, a gradual IP warmup is essential when migrating to a new ESP. Start with low volumes and gradually increase based on engagement metrics to establish trust with mailbox providers.
Documentation from SparkPost shares that when migrating to a new ESP, even with an established domain, you need to warm up the new IP address to ensure deliverability. Starting slowly and monitoring deliverability metrics is crucial.
Documentation from Postmark emphasizes that even with the same domain, a new ESP means new IPs. You need to warm up those IPs. Monitor sender reputation closely by checking feedback loops to ensure your deliverability remains high.