Can we use the same sender domain with our former email provider?

Yes, you can use the same sender domain that you were using with your former email provider. We just need to check your past 3 months events based on email data(openers, clickers, unsubscribers, bounced etc) and also need to check the domain reputation that the sender domain has. If the reputation and the openers clickers are good then we can start using the same sender domain.

How can I check my DNS records?

To verify your DNS records, follow these steps:
Navigate to the DNS records page corresponding to your datacenter. (Dengage operates across four datacenters.)
After receiving a Google Postmaster Record from your executive and completing the DNS configuration, the Dengage team will verify your records.
For regular monitoring of your records, you can utilize tools like
Additionally, routinely inspect your email contents to identify any potential issues with your records. Instructions for this process can be found here:

What is DKIM and DMARC?

DKIM, or DomainKeys Identified Mail, is an email authentication method that uses encryption keys. It involves generating a pair of keys – a private key for encrypting hidden signatures in email headers, and a public key that is defined as a TXT record in DNS. Recipient servers use the public key to decrypt the signature and verify the sender's authenticity. DKIM helps prevent email spoofing and improves email deliverability.

DMARC, or Domain-based Message Authentication, Reporting, and Conformance, complements DKIM and SPF (Sender Policy Framework) by providing rules for handling unauthenticated emails. Before setting up DMARC, it's essential to ensure proper implementation of SPF and DKIM. DMARC allows senders to specify actions for unauthenticated emails, such as taking no action, marking as spam and quarantining, or rejecting them outright. This helps protect against phishing and email fraud by enforcing authentication standards and providing visibility into email authentication failures.

I will continue using the same sender domain with my existing ESP, will this cause a problem in DNS records?

When managing email communications across multiple Email Service Providers (ESPs) while utilising the same sender domain, ensuring seamless and effective email deliverability becomes a paramount concern. To achieve this, you can consider following practices:

1️⃣ Update SPF records to include all ESP mail servers for authorized sending sources, preventing spam flags and rejections.
2️⃣ Maintain separate DKIM records for each ESP to avoid conflicts and ensure email authenticity.
3️⃣ Ensure DMARC compliance across ESPs for enhanced email security and legitimate delivery.
4️⃣ Set up custom tracking domains for each ESP to streamline email tracking and reporting.
5️⃣ Configure ESPs to handle bounces and feedback loops separately to maintain sender reputation.
6️⃣ Gradually increase email volume through a new ESP to establish trust with receiving servers.
7️⃣ Implement controls to prevent duplicate emails from being sent by multiple ESPs simultaneously to avoid confusion and protect sender reputation.