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How to Migrate Your Email Service to uSpeedo

Learning Objective​

Learn how to migrate your existing sending domain (also called a dedicated sending domain) from your previous email service provider to uSpeedo.

Before You Start​

For newly created uSpeedo accounts, and domains registered for less than 30 days, you need to plan warm-up for the sending infrastructure when configuring a sending domain.

Warm-up is the process of building sending reputation so you can be recognized as a legitimate or "high-quality" sender. Without proper warm-up, your sending reputation may be negatively affected.

To confirm whether your account requires warm-up, refer to the Domain Warm-up Guide.

In addition, make sure that:

  • You own the domain used for sending emails
  • You can access and modify DNS records for that domain

Configure Sending Setup in uSpeedo​

Sending Domain​

When you are ready to enable a sending domain in uSpeedo, you need to configure a sending domain.

You need to update DNS settings by adding CNAME and TXT records generated by your uSpeedo account. This allows you to send with your own sending domain instead of using uSpeedo shared domains.

Make sure your branded sending subdomain is not currently in use in DNS. If that subdomain already exists in DNS, it may conflict with existing records and impact other domain configurations.

Connecting a sending domain also enables DKIM and SPF authentication. These are email best practices that help prevent and mitigate deliverability issues and improve inbox placement.

Tracking Domain​

If you previously used a custom click tracking domain with another provider, or want to use one in uSpeedo, you can add additional CNAME records in DNS.

Dedicated click tracking allows links in your emails to display your branded domain rather than uSpeedo default encoded links, which improves user trust because links are easier to recognize.

Deliverability Factors​

When migrating a sending domain from another provider to uSpeedo, pay special attention to deliverability to ensure emails can reach the inbox successfully.

Sender Reputation​

When you migrate your sending domain to uSpeedo, sender reputation for that domain migrates with it.

Domain sending reputation is an important factor mailbox providers (MBPs) use when classifying your emails.

If your current sending domain has deliverability issues, follow email deliverability best practices to improve reputation and adjust your sending strategy.

Changing ESPs does not automatically solve deliverability issues.

DMARC​

If your sender email domain (the domain in the From address) has a DMARC policy, inbox placement may be affected when the sending domain and sender domain are not aligned.

DMARC is a protocol used to protect domains and prevent unauthorized sending (email spoofing).

When using a sending domain, make sure the sending domain aligns with the sender address domain.

For example:

If you use sales@example.com as your sender address and example.com has DMARC enabled, you should use a sending domain such as send.example.com in uSpeedo to satisfy DMARC alignment requirements.

If alignment is not met, sending performance may be affected.

This mismatch often happens when:

You use a uSpeedo default shared sending domain while the sender address domain has DMARC enabled.

If you use a shared domain to send, you should remove DMARC from the sender domain to avoid issues.

Remove DNS Records Created by the Previous Provider​

When you no longer use your previous provider for sending, you should remove related DNS records created by that provider.

This step must be completed outside uSpeedo and may require coordination with your IT team.

Please note:

Not all domain service providers allow direct editing of all DNS records. If you cannot modify them, contact your DNS provider for help.

After removing those DNS records, that domain will no longer send through the previous provider.

Before deletion, confirm that you no longer need the previous sending infrastructure.

Steps​

  1. Log in to your DNS provider (common options include):
  2. Remove all CNAME and TXT records in DNS generated by your previous provider.
  3. Some providers may also add MX records (for processing reply emails), so check those as well.

If other record types exist, contact support: support@mail-uspeedo.com.

Inbound Routing​

  • You can contact your account manager and provide receiving mailboxes to configure inbound routing, or pass Reply-To parameters through SMTP.

Receipt Push​

  • We provide webhook-based receipt push. You can configure the Webhook callback address in the console, and we support token verification to secure your endpoint.
  • You can choose which email status types to push and enable them as needed.

Sending Statistics​

  • After emails are sent, you can check the analytics page in the console (Email analytics). For failed emails, you can view detailed failure reasons to improve your sending performance.