Sending Domains

Sending Domains | Aveiro

In short

Audience → Domains is where you prove you own the address you send from. Add DNS records for a sender domain, or on paid plans connect Resend, Postmark, or similar as your email provider.

Why domains matter

Campaigns and welcome emails need a trusted From address. Without a verified sender domain or configured email provider, sends are blocked and the campaign editor shows a readiness warning. Open Audience → Domains to configure sending.

Two tabs

Depending on your plan, you see one or both:

Tab	Purpose
Sender domains	Verify a domain you own — recommended for all plans
Email provider	Bring your own API key (BYOK) — paid plans only

If both are available, switch tabs at the top of the page.

Sender domains

Add a domain

Click Add sender domain.
Enter the domain (e.g. mail.yourbrand.com or your root domain).
Copy the DNS records shown — SPF, DKIM, and related entries.
Add them at your domain registrar or DNS host.
Click Refresh and check DNS — Aveiro polls until status is Verified.

Domain limits

Your plan may cap how many sender domains you can add. Usage shows as X of Y used or unlimited on higher tiers.

Free plan

Sender domains may require a paid plan on some tiers. If you see an upgrade message, verified sending from your own address is not included on your current plan.

After verification

Use @yourdomain.com addresses in campaign From fields
Deliverability stats appear per domain on

Approach	Best for
Sender domain only	Most teams — simple DNS setup, works on standard plans
BYOK provider	Teams with existing Resend/Postmark contracts or deliverability tooling

Issue	Fix
Verification pending	Wait for DNS propagation (up to 48h); refresh DNS check
Verification failed	Compare records character-for-character; remove conflicting SPF
Cannot send campaigns	Ensure at least one verified domain or active default provider
Provider save failed	Check API key permissions; confirm BYOK is on your plan

Sending Domains

Why domains matter

Two tabs

Sender domains

Add a domain

Domain limits

After verification

Why domains matter

Two tabs

Sender domains

Add a domain

Domain limits

After verification

Email provider (BYOK)

Provider status

Which path to choose

Troubleshooting

Sending Domains

Why domains matter

Two tabs

Sender domains

Add a domain

Domain limits

After verification

Why domains matter

Two tabs

Sender domains

Add a domain

Domain limits

After verification

Email provider (BYOK)

Provider status

Which path to choose

Troubleshooting

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