Deliverability
Inbox placement is earned. We do the earning with you.
Authentication, reputation and discipline. Here is exactly how MailerAce keeps your messages out of the spam folder.
Authentication
DKIM keys generated and rotated for you
When you add a domain we generate a 2048-bit RSA key. Publish one CNAME record and the public key lives in our DNS, so rotation needs no further action from you. Prefer TXT records? That works too.
- Unique selector per key, never reused
- Old keys stay published during rotation
- Records checked automatically until valid
DNS records
- TXT (ownership)
- verification token
- CNAME <selector>._domainkey
- → delegated DKIM key
- TXT @ (SPF)
- include:_spf.mailerace.com
- TXT _dmarc
- v=DMARC1; p=none; …
Verification
We tell you exactly what is wrong
Domain checks run in the background and on demand. Each record shows its status (valid, missing or wrong) and what we observed, so you can fix DNS without guesswork. Verified domains are re-checked so a broken record never goes unnoticed.
- Clear status per DNS record
- Notifications when a domain becomes verified or fails
- SPF lookup count and duplicate-record warnings
Reputation
Clean IPs because we say no
Shared IPs are only as good as the worst sender on them. That is why every account starts in a sandbox, purchased lists are banned, outbound mail is scanned for spam, and accounts with high bounce or complaint rates are paused automatically.
- Recipient sandbox for new accounts
- Automatic suppression of hard bounces and complaints
- Rate limits and abuse detection
- Dedicated IPs with guided warm-up
Healthy sending
- bounce rate
- < 2%
- complaint rate
- < 0.1%
- authentication
- SPF + DKIM + DMARC
- list
- opt-in only
FAQ
Deliverability questions
What are SPF, DKIM and DMARC?
SPF lists the servers allowed to send for your domain. DKIM adds a cryptographic signature proving the message was authorised by your domain and not altered. DMARC tells receivers what to do when SPF or DKIM fail and asks for reports. Since 2024, Gmail and Yahoo require them for bulk senders, and they help every sender reach the inbox.
Do I have to rotate DKIM keys myself?
No. With CNAME delegation (recommended), your DKIM record points to a key we host, so we can rotate keys without you touching DNS again.
Which DMARC policy should I start with?
Start with p=none and a reporting address while you confirm every service that sends for your domain is aligned, then move to quarantine and reject. We show your current policy when we check the domain.
Can I use my existing SPF record?
Yes. Add include:_spf.mailerace.com to your existing record instead of creating a second SPF record (a domain may only have one).
Why does the sandbox exist?
New accounts can only send to their own verified domains until they are approved. It stops spammers from abusing shared IPs, which keeps deliverability high for every legitimate customer.
Authenticate your domain in minutes
Add your domain, publish two records, and send with full alignment.