Definition
Migrating between email platforms is a high-risk operation that can damage deliverability if done incorrectly. The standard process includes: auditing your current setup (lists, segments, templates, automations, integrations), selecting and configuring the new platform, setting up authentication (SPF, DKIM, DMARC) for the new platform, warming up new dedicated IPs (4-8 weeks), migrating subscriber lists with consent records, recreating templates and automation workflows in the new platform, running parallel sends to verify deliverability, updating tracking domains and DNS records, decommissioning the old platform, and monitoring deliverability closely for 30-60 days after migration.
Why It Matters
This matters because the choices you make here show up directly in your results. DNS records, decommissioning the old platform, and monitoring deliverability closely for 30-60 days after migration. When this is handled well it supports engagement, delivery, and the trust subscribers place in your brand; when it is neglected, the effects tend to show up in declining performance and harder-to-fix problems further down the line.
Best Practices
- Start with the fundamentals of Email Platform Migration Process and build from a clear baseline, so later improvements are measurable rather than assumed.
- Keep Email Platform Migration Process consistent with how the rest of your email programme works, so no single initiative works against another.
- Review how Email Platform Migration Process is handled in your own data and adjust from what you see, rather than copying what another brand does.
- Test one change at a time and measure the effect before rolling it out more widely.
- Revisit your approach to Email Platform Migration Process regularly, because audience behaviour and inbox technology keep moving.
- Make sure the basics — relevance, timing, and honesty — are solid before chasing more advanced tactics.
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Related Glossary Terms
Account-Based Marketing Email
An account-based marketing email is a highly targeted message sent to a specific organisation or decision-maker group as part of a focused B2B strategy.
Announcement Email
An announcement email is a dedicated campaign that communicates a specific update, milestone, or change to subscribers, from product launches and feature releases to company news and events.
Email API Integration
Email API integration is the connection between an email platform and another system, such as a CRM, ecommerce store or customer data platform, using an application programming interface.
B2B Email Marketing
B2B email marketing targets business professionals and organisations with longer sales cycles, educational content, and relationship-driven campaigns compared to B2C email.
B2C Email Marketing
B2C email marketing focuses on sending targeted promotional and transactional emails to individual consumers, emphasising personalisation, urgency, and direct response.
Batch Sending
Batch sending is the practice of delivering a single email campaign to a large list in groups or waves rather than all at once.
Frequently Asked Questions
Good practice here means handling Email Platform Migration Process in a way that is relevant, timely, and honest for your audience. Email platform migration is the process of moving your subscriber data, templates, automation workflows, and sending infrastructure from one ESP to another without disrupting deliverability. Done well, it improves engagement and builds trust; done poorly, it creates friction that costs you results.
Because it touches the parts of email that drive outcomes: relevance, trust, and delivery. Small improvements compound, while repeated mistakes quietly erode the health of your programme.
The most common problems are treating Email Platform Migration Process as a one-off task, ignoring what the data says, and copying competitors without testing. All three lead to effort that does not translate into better results.
Compare the metrics it should influence — engagement, conversions, and deliverability — before and after you make changes. Trends over time matter far more than any single send.
It supports the same goal as the rest of your email programme: the right message to the right person at the right time. Aligned with segmentation and automation, it reinforces everything else rather than competing with it.