AhaSend vs Blindrelay
Both keep your mail in the EU. Blindrelay stores a message only while a deferred delivery waits to retry, up to 24 hours, and not at all with retries off.
Start freeHow they differ
€ EUR $ USD| Capability | Blindrelay | AhaSend |
|---|---|---|
Message content retention | Never stored, except while a deferred delivery waits to retry (up to 24h). Turn retries off and it never touches disk. | 0–30 days by plan (Free 1–7, Pro 0–14, Max 0–30) |
Delivery logs | Status by message ID — no content, recipient hashed | 1–30 days by plan |
How zero retention is enforced | Architecture, checked by a test on every change | Retention setting per account or message |
CLI + Agent Plugin | Agent Plugin + CLI (scoped keys) | MCP server + CLI |
Idempotency-Key on send | Yes (24h) | Yes (24h) |
Observability | OTLP-first, plus webhooks | Webhooks |
Default data residency | EU | EU |
Dedicated IP | €12/mo, on every paid plan | Add-on on Pro from 100,000 messages a month, included from 300,000 |
DMARC monitoring | Included on every paid plan; weekly digest on Free | Not listed on its pricing page |
Inbound mail to your HTTPS endpoint | Every paid plan; forwarded without being stored, counts as one message | Every plan; stored, at least 1 day of retention |
Price currency | EUR or USD, excl. VAT | USD, EUR or GBP, excl. VAT |
Free tier | 3,000/mo | 1,000/mo |
Sending domains on paid plans | Unlimited (fair use) | Unlimited |
Entry paid plan | €6 / 20k · €0.30 per 1k included · €0.24 per 1k overage | €9 / 25k · €0.36 per 1k included (Pro) |
Higher-volume plan | €26 / 100k · €0.26 per 1k included · €0.22 per 1k overage | €72 / 100k · €0.72 per 1k included (Max) |
Prices as of 11.11.2026. All prices exclude VAT. Competitor list prices in another currency are converted at the ECB rate (1 USD ≈ 0.90 EUR); € per 1k included evens out different included volumes; Blindrelay's overage rate is the price per 1k beyond them.
How to migrate
API mapping
AhaSend's POST /v2/accounts/{account_id}/messages becomes Blindrelay's POST /v1/send. Both use Authorization: Bearer; the account ID leaves the path, and the sender and recipient objects become plain addresses. See the API reference.
| AhaSend | Blindrelay |
|---|---|
from.email + from.name | from ("Name <email>") |
recipients[].email | to (string or array, max 50) |
subject | subject |
html_content | html |
text_content | text |
retention.data / retention.metadata | nothing to set: content is kept only while a deferred delivery waits to retry (up to 24h) |
Idempotency-Key | Idempotency-Key (24h) |
POST /v2/accounts/{account_id}/messages | POST /v1/send |
https://api.ahasend.com | https://api.blindrelay.app |
Substitutions, stored templates and open or click tracking have no Blindrelay equivalent: render the message in your app. Per-message engagement data is not collected by design.
Migration checklist
- Create a Blindrelay workspace and add your sending domain.
- Publish DKIM, SPF, and DMARC TXT records (Blindrelay generates DKIM; you own DNS).
- Click Verify DNS in the dashboard.
- Replace your AhaSend messages client with POST /v1/send and drop the account ID from the path.
- Configure OTLP or webhooks on the Delivery page — delivery metrics land in your stack instead of AhaSend's delivery logs.
- Cut over traffic, then remove AhaSend DNS records once sends are stable.
50% off your first 3 months
Show us a paid Resend, Postmark, Mailgun, SendGrid, or AhaSend account and get 50% off your first 3 months. Submit a claim below — after approval, the discount applies automatically at Checkout (no promo code). We also help with DNS, DKIM rotation, and OTLP wiring. (Offer does not apply to infrastructure-only providers such as Amazon SES.)
See pricingAlso see zero-retention architecture or procurement pack .