# SPF record for MailerSend

URL: https://iblockspam.com/spf/mailersend
Last updated: 2026-11-03

Include: include:_spf.mailersend.net
Where it goes: Your domain (@)
DNS lookups: 1 of 10

MailerSend asks for a TXT record on your domain (host @) with include:_spf.mailersend.net, and shows the value already merged with any SPF record you have. It also needs a return-path CNAME, mta by default, pointing to mailersend.net, and two DKIM CNAMEs. The include costs 1 DNS lookup.

## Example records

- MailerSend only (TXT, host @): `v=spf1 include:_spf.mailersend.net ~all`
- Google Workspace and MailerSend (TXT, host @): `v=spf1 include:_spf.google.com include:_spf.mailersend.net ~all`
- Return path (CNAME, not TXT) (CNAME, host mta): `mailersend.net` `mta` is MailerSend's default host; you can change it with Edit on the Domains page.

## Notes

- MailerSend needs SPF, both DKIM CNAMEs and the return-path CNAME to verify the domain. Tracking CNAMEs are needed only if you turn on custom DNS records for tracking.
- MailerSend's API example shows its SPF value ending in `-all` and including an IPv6 range. Copy your account's exact value rather than this page's examples.
- Some DNS hosts treat the host field differently: MailerSend says to leave it empty for SPF on Wix and Google Domains, and not to use `@` on Google Cloud DNS.

## How to add it

- In MailerSend, go to **Email > Domains**, click **Add domain**, enter the domain and click **Add domain** again.
- Choose automatic authentication through your registrar login, or close the pop-up to set up the records by hand.
- Replace your existing SPF TXT record on `@` with the value MailerSend shows, which already includes what you had. Don't add a second SPF record.
- Add the two DKIM CNAMEs and the `mta` return-path CNAME, tick **I have added DNS records** and click **Finish verification**.
- MailerSend says verification usually takes minutes but can take up to 48 hours; use **Re-check now** after that, then check the live record with the SPF Checker below.

## DKIM and DMARC

The `mta` return path is a subdomain of yours, so SPF for MailerSend mail is checked there and can align under relaxed DMARC alignment. The two DKIM CNAMEs carry MailerSend's 2048-bit keys and give a second aligned pass. MailerSend doesn't create a DMARC record for you. See our [MailerSend DKIM page](https://iblockspam.com/dkim/mailersend).

## Common mistakes

- Adding MailerSend's value as a second SPF record. MailerSend says there can't be more than one SPF record in a DNS zone.
- Typing `mta.example.com` as the host where your DNS host appends the domain. For Google Domains, MailerSend says to enter only `mta`.
- Skipping the return-path CNAME. MailerSend counts it among the records needed to verify the domain.

**Q: What is the SPF include for MailerSend?**
`include:_spf.mailersend.net`, in the TXT record on your domain. MailerSend shows the full value already merged with your existing SPF record, so you replace your record with it rather than adding another.

**Q: What is the mta record in MailerSend?**
It is the return-path CNAME: `mta.example.com` pointing to `mailersend.net`. Bounces use it, and it's one of the records MailerSend needs to verify the domain. You can rename the host with Edit on the Domains page.

**Q: My MailerSend domain still isn't verified after 48 hours. What now?**
Click Re-check now on the domain. MailerSend says to contact its support if the domain still isn't verified after another 48 hours. Meanwhile, check for a doubled host name or a second SPF record with the SPF Checker below.

Sources:
- MailerSend Help: How to add and verify your sending domain: https://www.mailersend.com/help/how-to-verify-and-authenticate-a-sending-domain
- MailerSend API Reference: Domains (Get DNS records): https://developers.mailersend.com/api/v1/domains.html

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Source: iBlockSpam, https://iblockspam.com/spf/mailersend (this is a Markdown copy; the HTML page is canonical). Quote with attribution and a link. Site index for AI assistants: https://iblockspam.com/llms.txt