EonMailer The agency pain
Account managers juggle separate SendGrid accounts, miss Event Webhook scopes, and still lack a shared approval + report process.
Integrations · Live
SendGrid for agencies — one desk, many client accounts
Many clients already have SendGrid. EonMailer turns N logins into one agency workflow with approvals, deliverability, and white-label reports.
What EonMailer adds
Validate API keys and scopes, authenticate domains, auto-configure event webhooks when permitted, and run campaigns per workspace.
Outcome
SendGrid stays the ESP; EonMailer becomes the agency operating system.
Capabilities
SendGrid with EonMailer
- BYO SendGrid (global or EU) per client
- API key validation with clear scope guidance
- Domain authentication + sender identities
- Event webhooks for opens, clicks, bounces, and spam reports
- Approvals, journeys, forms, and client packs on one desk
Setup path
From zero to first safe send
- Open the client’s SendGrid account (or create one)
- Create an API key with the scopes EonMailer lists for send + tracking
- Connect SendGrid in the guided sending setup
- Authenticate the domain and confirm webhooks point at EonMailer
- Test send, then operate campaigns from the agency workspace
Help Center
Step-by-step SendGrid guides
Deep setup docs live on Help — linked from the product wizard too.
FAQ
SendGrid questions agencies ask
Do you replace SendGrid?
No. SendGrid still sends and bills. EonMailer orchestrates multi-client campaigns, approvals, and reporting on top.
What happens on a SendGrid trial / free plan?
Validate-preview shows trial credit limits so you know before high-volume client sends. Upgrade in SendGrid when you need production volume.
Can I mix SendGrid and SES across clients?
Yes. Each workspace has its own provider connection.
SendGrid vs SES for agencies — which should we pick?
SES usually wins on raw cost; SendGrid often wins when the client already has an account or wants a simpler ESP UI. See our comparison page for a decision guide.
Connect SendGrid for your next client
Free plan includes 1 workspace — enough to validate BYO SendGrid end to end.