ESP Migration delıverabılıty · 01
ESP Migration Services for Better Email Deliverability.
A poorly executed email service provider migration can silently erode your sender reputation and trap your messages in spam folders for months. Domain authentication, SPF, DKIM, and DMARC records need careful coordination during the switch, and monitoring must stay active throughout the transition. Magnero’s esp migration services handle your platform move, authentication setup, and data transfer as a coordinated process, protecting your deliverability and sender reputation every step of the way.



The payoff · 02
A migration that protects your sender reputation.
Protect Your Sender Rep
Maintain your sender reputation and authentication records throughout the entire migration process.
Maximize Inbox Access
Ensure your messages reach subscriber inboxes with proper deliverability configuration and best practices.
Preserve Operations
Keep your email automations, segments, and subscriber data intact during your ESP migration and transition.
The decision · 03
When and why to migrate ESPs.
Migrating to a new email service provider is a significant technical undertaking that requires careful planning and execution. The decision to switch should be driven by concrete operational challenges rather than minor inconveniences, as a poorly executed migration can temporarily damage your sender reputation and deliverability performance.
A successful ESP migration addresses specific pain points that your current platform cannot resolve, such as deliverability decline, insufficient automation capabilities, missing integrations, or cost inefficiencies at scale.
Signs it might be time to migrate
Review these indicators to determine if switching platforms aligns with your email program goals.
Deliverability has quietly gotten worse over time
You have outgrown the platform’s automation or segmentation
Key integrations are missing or unreliable
Pricing no longer fits your sending volume
Support is slow when deliverability issues come up
The technical layer · 04
Domain authentication: SPF, DKIM, and DMARC.
SPF
Authenticate your mail servers. SPF is a DNS record that verifies which mail servers are authorized to send email on your domain’s behalf.
DKIM
Sign your messages cryptographically. DKIM adds a digital signature to your emails so receiving servers can confirm the message was not altered in transit.
DMARC
Enforce authentication policies. DMARC is a policy that tells receiving servers what to do with mail that fails SPF or DKIM checks.
How we work · 05
Our ESP migration and monitoring process.
A successful migration protects your sender reputation and inbox placement at every step, not just moving data and hoping for the best. We plan each phase around authentication, list quality, and ongoing monitoring to ensure your emails reach inboxes after the switch.

01
Step 01
Pre-migration audit
We review your current sender reputation, authentication records, and list health before moving anything. This assessment identifies risks and establishes a baseline for measuring success after migration.

02
step 02
Authentication and setup
SPF, DKIM, and DMARC are configured correctly on your new platform before sending begins. Proper authentication prevents deliverability issues and builds trust with mailbox providers from day one.

03
step 03
Migration and CRM integration
Your lists, automations, and integrations move across with data intact and no gaps in your campaigns. We ensure all connections work properly so your marketing operations continue without interruption.

04
step 04
Ongoing deliverability monitoring
We watch inbox placement and sender reputation after launch, not just on migration day. Continuous monitoring catches issues early and keeps your performance optimized long term.
Better together · 06
Where this fits in your email program.
Explore how complementary services strengthen your migration.
Segmentation & List Management
Deliverability and list hygiene work together to protect your sender reputation. Clean, well-organized lists ensure your messages reach engaged subscribers on your new platform, reducing bounce rates and improving inbox placement from day one.
Email Automation & Drip Campaigns
Your automated workflows are critical assets that must transfer seamlessly during migration. Rebuilding or reconfiguring these sequences on a new ESP requires careful planning to maintain customer journeys and engagement momentum without interruption.
Email Template Design
Templates built for one platform may not render identically on another. Ensuring your designs display correctly across email clients on your new ESP prevents formatting issues and maintains brand consistency throughout your migrated campaigns.
Email Marketing
ESP migration is one component of a larger email marketing strategy. Understanding how your technical platform change fits into broader campaign goals, audience targeting, and performance metrics helps maximize the value of your transition investment.
Copywriting
After migration, your subject lines and body copy determine whether subscribers engage with your messages. Strong copywriting paired with improved deliverability on your new platform amplifies the impact of your email program and drives better results.
Common questions · 07
Frequently asked questions about ESP migration and deliverability.
How do I know if it is time to migrate ESPs?
Will migrating hurt my sender reputation?
What are SPF, DKIM, and DMARC, and do I need all three?
Can you migrate my automations and segments too?
How long does an ESP migration take?
Do you monitor deliverability after the migration is done?

Get started · 08
Move platforms, keep your deliverability
Moving to a new email service provider requires careful planning to protect your sender reputation and maintain inbox placement. Our ESP migration services handle authentication setup, list validation, and gradual warm-up protocols to ensure your emails reach subscribers without disruption.
Protect your sender reputation during platform transitions