InboxMon

Multi-ESP

Running Both Amazon SES and SendGrid? Here’s How to Monitor Them Together.

Target searches: Amazon SES vs SendGrid monitoring, multi-ESP email tracking, merge SendGrid and SES events.

As companies scale, email rarely stays on one vendor. It is common to use Amazon SES for high-volume transactional mail and SendGrid or Postmark for campaigns and product notifications. That split is cheap. Visibility usually is not.

The multi-ESP blind spot

When infrastructure is split, data is split.

  • Engineering watches CloudWatch for SES.
  • Marketing watches the SendGrid dashboard.
  • Nobody sees the combined hit on the root domain's reputation.

If the SES stream spikes Hard bounces (a bad import, a stale list), receivers like Gmail may throttle the whole domain. SendGrid campaigns start landing in spam, and teams spend days blaming each other instead of the shared reputation.

Unified event aggregation

InboxMon does not replace your ESPs. It listens. Paste one webhook URL per provider into SendGrid, Postmark, and Amazon SES. Events ingest from all of them at once.

  • One pane of glass — volume, Temporary / Hard errors, bounces, and latency across providers, then a merged health score.
  • Shared-domain risk — if one ESP's metrics degrade, hourly anomaly alerts and the domain table fire so other streams are not a surprise.
  • Simpler troubleshooting — Events-by-ESP and Overview use the same request-total rules. No CSV export to compare vendors.

You keep sending from the tools you trust. InboxMon makes their events comparable.

FAQ

Can I monitor Amazon SES and SendGrid together?

Yes. Add a connection per provider, paste each webhook, and InboxMon summarizes volume per ESP then merges into one dashboard, health score, and alert stream. Postmark works the same way.

How do you merge SendGrid and SES events?

Each ESP keeps its own webhook URL. Events are stored with the provider, totaled per ESP, then combined so one SendGrid processed count does not wipe SES volume.

Does InboxMon replace SES or SendGrid?

No. You keep sending from those tools. InboxMon only listens to webhooks.

Merge your ESPs into one health score.

Connect your first two providers in under 5 minutes. No code changes.