# How to set up SimpleLogin with a custom domain? > SimpleLogin custom domain needs a Premium plan ($36/year) and 8 DNS records: a unique ownership TXT, MX at 10 and 20, SPF, 3 DKIM CNAMEs and DMARC. - URL: https://postelva.com/guides/simplelogin-custom-domain-setup/ - Last updated: 2026-11-12 - Publisher: Postelva (https://postelva.com) SimpleLogin forwards mail sent to any alias on your domain to the mailbox you already use. Setup is one ownership record, two MX records and, for sending, SPF, DKIM and DMARC. **Quick answer — How to set up SimpleLogin with a custom domain?** On a Premium plan ($36 a year), open the custom domain page in the SimpleLogin dashboard, enter your domain, then publish 8 records: an ownership TXT shown there, MX mx1.simplelogin.co (10) and mx2.simplelogin.co (20), SPF, three DKIM CNAMEs and DMARC. **Postelva** sells the domain and hosts the DNS. ## The eight DNS records for a SimpleLogin domain *From SimpleLogin's Cloudflare and Namecheap registrar guides, read 12 November 2026. The ownership value is unique to your account and is not printed in the documentation.* | Record | Type | Host | Value | Priority | | --- | --- | --- | --- | --- | | Ownership | TXT | @ | The string shown on your SimpleLogin domain page | - | | Mail 1 | MX | @ | mx1.simplelogin.co. | 10 | | Mail 2 | MX | @ | mx2.simplelogin.co. | 20 | | SPF | TXT | @ | v=spf1 include:simplelogin.co ~all | - | | DKIM 1 | CNAME | dkim._domainkey | dkim._domainkey.simplelogin.co. | - | | DKIM 2 | CNAME | dkim02._domainkey | dkim02._domainkey.simplelogin.co. | - | | DKIM 3 | CNAME | dkim03._domainkey | dkim03._domainkey.simplelogin.co. | - | | DMARC | TXT | _dmarc | v=DMARC1; p=quarantine; pct=100; adkim=s; aspf=s | - | ## Steps for a domain bought at Postelva 1. **Register the domain** — Buy it in the Postelva client area and keep the nameservers there, so you edit records in one place. 2. **Upgrade the SimpleLogin account** — Custom domains are listed on the Premium plan, so move off the free plan first. 3. **Add the domain** — In the SimpleLogin dashboard open the custom domain page, type the bare domain and continue to the DNS page, which shows your ownership string. 4. **Publish the records** — In the DNS editor delete any old MX record, add the ownership TXT, the two MX records and, to send as your domain, the SPF, DKIM and DMARC records. 5. **Verify and create an alias** — Press Verify on each line in SimpleLogin, retrying after a few minutes if propagation is slow, then create your first alias on the new domain. *The SimpleLogin zone for example.com* ```dns example.com. TXT "" example.com. MX 10 mx1.simplelogin.co. example.com. MX 20 mx2.simplelogin.co. example.com. TXT "v=spf1 include:simplelogin.co ~all" dkim._domainkey.example.com. CNAME dkim._domainkey.simplelogin.co. dkim02._domainkey.example.com. CNAME dkim02._domainkey.simplelogin.co. dkim03._domainkey.example.com. CNAME dkim03._domainkey.simplelogin.co. _dmarc.example.com. TXT "v=DMARC1; p=quarantine; pct=100; adkim=s; aspf=s" ``` ## Which SimpleLogin plan do you need for your own domain? **The Premium plan is the one that lists custom domains; the free plan does not.** On SimpleLogin's pricing page read on 12 November 2026, Free cost $0 with 10 aliases and one mailbox, while Premium cost $36 a year or $4 billed monthly and listed unlimited aliases, unlimited mailboxes, unlimited custom domains, catch-all domains and 5 subdomains. The page names Bitcoin and Monero as crypto options, sold through a reseller called ProxyStore, besides cards and PayPal through Paddle. That split is useful. SimpleLogin never stores your mail, it relays it, so the domain is the permanent part of your address and the plan is the replaceable part. A .com bought at Postelva costs $12.49/year every year, paid with BTC, USDT, USDC, ETH, SOL, LTC, and it stays yours if you later switch from SimpleLogin to a mailbox host. The reasoning is laid out in [what is a custom email domain](https://postelva.com/custom-email-domain/ "What is a custom email domain?"). ## Why does the documentation show one DKIM record in one guide and three in another? **SimpleLogin's Namecheap guide lists a single DKIM CNAME, while its Cloudflare guide lists three.** Both were read on 12 November 2026. The Cloudflare page names dkim, dkim02 and dkim03 under _domainkey, each pointing to the same label on simplelogin.co, and requires them to be set to DNS only if you use Cloudflare's proxy. Publishing all three matches the most complete list. Always compare your list with the one on your own SimpleLogin DNS page, which is the authority for your account. The same guides mark SPF, DKIM and DMARC as optional. They are optional for receiving, because forwarding only needs the MX records, but sending as an alias needs them for deliverability. Read [SPF vs DKIM vs DMARC](https://postelva.com/spf-vs-dkim-vs-dmarc/ "SPF vs DKIM vs DMARC: what is the difference?") for the role of each, and [how to set up DKIM](https://postelva.com/guides/dkim-setup/ "How to set up DKIM for a custom email domain") for the selector logic. ## How do catch-all and auto-create work on your domain? **With Catch All enabled, any address at your domain creates an alias the first time it receives mail.** SimpleLogin's domain management page describes this in the domain's Info options, together with Auto Create, which restricts what gets created by a regular expression. Deleted aliases on a custom domain can be restored from a Deleted Alias list. Once the DNS is verified your domain also appears on the New Custom Alias page. Giving each website its own address on your domain makes a leak traceable to the site that sold your data, and the broader pattern is covered in [how to use a catch-all address and aliases](https://postelva.com/guides/catch-all-and-aliases/ "How to use a catch-all address and aliases on your own domain"). To confirm that every record is live from the outside, follow [how to check MX, SPF, DKIM and DMARC records](https://postelva.com/guides/check-email-dns-records/ "How to check MX, SPF, DKIM and DMARC records"). ## How many records does SimpleLogin need compared with a mailbox provider? **SimpleLogin needs eight records in the complete list, one more than the seven that addy.io needs.** According to Postelva's survey of 12 November 2026, the SimpleLogin list in this guide has 8 lines, of which only the 2 MX records are strictly needed to receive forwarded mail, and a .com costs $12.49/year at Postelva in the first year and every year after. The Postelva DNS editor supports free DNS hosting with A, AAAA, CNAME, ALIAS, MX, TXT, NS, SRV and CAA records, DNSSEC, and your own nameservers if you prefer (2 to 13), so every type in the table can be entered, and one-click DNS templates for Proton Mail, Fastmail, Zoho Mail, Google Workspace and Microsoft 365, plus an SPF + DMARC template and a "no email" template for a domain that sends nothing exist for the providers that have one; SimpleLogin is not among them, so you type its records by hand. usually within minutes of the top-up being credited. SimpleLogin uses two MX records for a custom domain, mx1.simplelogin.co at priority 10 and mx2.simplelogin.co at priority 20, plus an ownership TXT that is different for every account. ## Questions about SimpleLogin and custom domains ### Is the ownership TXT the same for everyone? No. Each account sees its own string on the SimpleLogin domain page, and the documentation does not print it. Copy it from the dashboard and paste it at host @. ### Do I need to remove my old MX records? Yes. The registrar guides tell you to delete existing MX records first, otherwise some senders keep delivering to the old host. Leave only the two SimpleLogin lines. ### Can I use SimpleLogin on a subdomain? Yes, SimpleLogin documents a Namecheap guide for subdomains, where the host labels carry the subdomain name instead of @. The record types stay the same. ### Does SimpleLogin accept crypto? Its pricing page names Bitcoin and Monero through a reseller. Postelva takes BTC, USDT, USDC, ETH, SOL, LTC for the domain and does not accept Monero. ### Does SimpleLogin host my mailbox? No. It forwards to a mailbox you already have, so you still need an inbox elsewhere. The domain and the aliases remain yours either way. **In summary** - SimpleLogin lists custom domains on Premium: $36 a year or $4 a month. - 8 records: ownership TXT, 2 MX, SPF, 3 DKIM CNAMEs, DMARC. - MX: mx1.simplelogin.co. (10) and mx2.simplelogin.co. (20). - SPF: v=spf1 include:simplelogin.co ~all. - DKIM hosts: dkim._domainkey, dkim02._domainkey, dkim03._domainkey. - The ownership TXT is unique to your account. - Only the two MX records are needed to receive; the rest enable sending. - Postelva: .com is $12.49/year every year. ## Sources 1. [SimpleLogin - Add a custom domain](https://simplelogin.io/docs/custom-domain/add-domain/) — SimpleLogin (read 2026-11-12) 2. [SimpleLogin - Namecheap registrar guide](https://simplelogin.io/docs/custom-domain/registrars/namecheap/namecheap/) — SimpleLogin (read 2026-11-12) 3. [SimpleLogin - Cloudflare registrar guide](https://simplelogin.io/docs/custom-domain/registrars/cloudflare/cloudflare/) — SimpleLogin (read 2026-11-12) 4. [SimpleLogin - Manage a domain](https://simplelogin.io/docs/custom-domain/manage-domain/) — SimpleLogin (read 2026-11-12) 5. [SimpleLogin pricing](https://simplelogin.io/pricing/) — SimpleLogin (read 2026-11-12) --- Postelva: Postelva registers domain names for private email — the address you keep when you change provider — paid in crypto with no KYC: no ID, only one verified email per domain. It is run by DomaineGoat LLC, a company registered in Panama; domains are registered through its ICANN-accredited registrar partner. A .com costs $12.49/year, the same price every year.