EonMailer Integrations · Compare
Mailchimp × N clients is an agency tax
Mailchimp (and similar ESPs) optimize for one business. Agencies pay that model once per retainer — separate logins, separate bills, separate processes. EonMailer flips it: one ops desk, clients keep cheap BYO sending.
Mailchimp-style × N
- One ESP login / bill per brand
- Per-contact tiers stack with every client
- Approvals scattered across Slack
- Reports look like the ESP, not your agency
- AMs ask “which account am I in?” all day
EonMailer + BYO
- One agency console, workspace switcher
- SES/SendGrid/Mailgun bills stay on the client
- Review links + campaign pipeline
- White-label packs on Growth/Scale
- Guided deliverability before send
Who this is for
Digital agencies running email for ~5–40 clients
If you sell retainers and already know ESP sprawl hurts margin, you are the beachhead. If you are a single brand looking for “the next Mailchimp,” we are probably not your product — and that is intentional.
Next reads
FAQ
Mailchimp vs EonMailer for agencies
Is EonMailer a Mailchimp alternative?
For agencies, yes in the ops sense: one desk for many clients. We are not trying to replace Mailchimp for a single end business. You bring SES/SendGrid/Mailgun instead of paying per-contact × N brands.
Do I have to leave Mailchimp immediately?
No. Many teams migrate one retainer at a time: keep Mailchimp on long-tail brands while new clients go live on SES + EonMailer.
Will clients notice the ESP chrome?
On Growth/Scale, shared report packs can wear your agency brand. Day-to-day sending still uses the client’s provider reputation.
What about Klaviyo or Constant Contact × N?
Same structural problem for agencies: per-brand SaaS tax. BYO infrastructure + an agency console is the model shift.
Replace the sprawl on one client this week
Free plan — connect SES or SendGrid and prove the desk before you migrate the book.