--- title: "How to Configure SPF for Stackmail | AutoSPF" description: "Learn how to configure SPF for Stackmail to improve email authentication, reduce spoofing risks, and enhance email deliverability." image: "https://autospf.com/og/blog/how-to-configure-spf-for-stackmail.png" canonical: "https://autospf.com/blog/how-to-configure-spf-for-stackmail/" --- Quick Answer To configure SPF for Stackmail, add an SPF TXT record to your domain’s DNS settings that includes Stackmail’s mail servers. After saving the record, verify it using an SPF checker to ensure your emails authenticate correctly and avoid spam filtering. Share [ ](https://www.linkedin.com/sharing/share-offsite/?url=https%3A%2F%2Fautospf.com%2Fblog%2Fhow-to-configure-spf-for-stackmail%2F "Share on LinkedIn") [ ](https://twitter.com/intent/tweet?text=How%20to%20Configure%20SPF%20for%20Stackmail&url=https%3A%2F%2Fautospf.com%2Fblog%2Fhow-to-configure-spf-for-stackmail%2F "Share on X/Twitter") [ ](https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fautospf.com%2Fblog%2Fhow-to-configure-spf-for-stackmail%2F "Share on Facebook") [ ](https://reddit.com/submit?url=https%3A%2F%2Fautospf.com%2Fblog%2Fhow-to-configure-spf-for-stackmail%2F&title=How%20to%20Configure%20SPF%20for%20Stackmail "Share on Reddit") [ ](mailto:?subject=How%20to%20Configure%20SPF%20for%20Stackmail&body=Check out this article: https%3A%2F%2Fautospf.com%2Fblog%2Fhow-to-configure-spf-for-stackmail%2F "Share via Email") ![Configure SPF for Stackmail](https://media.mailhop.org/autospf/spf-lookup-3160-1779870523956.jpg) Setting up an SPF (Sender Policy Framework) **record for Stackmail** helps improve your domain’s [email security](https://autospf.com/) by identifying which mail servers are allowed to send emails on behalf of your domain. Proper SPF configuration can also reduce the chances of spoofing, spam, and [phishing attacks](https://www.bleepingcomputer.com/news/security/fbi-warns-of-phishing-attacks-impersonating-us-city-county-officials/). ## What Is an SPF Record? An SPF record is a **DNS TXT entry** that tells receiving [mail servers](https://www.cloudflare.com/learning/email-security/what-is-a-mail-server/) which systems are permitted to send email using your domain name. When configured correctly, it improves [email deliverability](https://autospf.com/blog/spf-protocol-explained-boosting-your-email-deliverability-and-security/) and helps prevent unauthorized senders from impersonating your domain.![Spf Validator 1460](https://media.mailhop.org/autospf/spf-validator-1460-1779874108794.jpg) ## SPF Record for Stackmail To [authorize Stackmail](https://docs.20i.com/email-hosting/sending-emails-from-stackmail-using-gmail) as a valid sender for your domain, add the following **SPF value** to your DNS settings: `v=spf1 include:spf.stackmail.com -all` ## Steps to Add SPF for Stackmail ### 1\. Access Your DNS Management Panel Log in to the [control panel](https://en.wikipedia.org/wiki/Control%5FPanel%5F%28Windows%29) provided by your **domain registrar** or hosting company where your DNS records are managed. ### 2\. Open DNS Settings Locate the **DNS management** or [DNS zone](https://www.ibm.com/think/topics/dns-zone) editor section for the domain you want to configure. ### 3\. Create or Edit a TXT Record Find any existing **SPF TXT record**. If no SPF record exists, create a new [TXT record](https://www.digicert.com/faq/dns/what-is-a-txt-record). Add a TXT record with the host/name set to “@” and the value `v=spf1 include:spf.stackmail.com -all` to authorize Stackmail servers to send emails for your domain. This SPF configuration helps **improve email delivery** and reduces the risk of spoofing or spam. ### 4\. Save the Record Save your DNS changes after entering the [SPF](https://autospf.com/blog/what-is-spf-email-a-guide-to-sender-validation-technology/) value. ### 5\. Wait for DNS Propagation _DNS updates may take several hours to fully propagate across the internet. In some cases, complete propagation can take up to 72 hours._ ## If You Already Have an SPF Record ![Spf Flatterning 4688](https://media.mailhop.org/autospf/spf-flatterning-4688-1779874197037.jpg)A domain should only have one [SPF record](https://autospf.com/blog/spf-records-in-dns-a-complete-guide-for-email-security/). If your domain already uses SPF for another email provider, you must update the existing record instead of adding a second one. **Multiple SPF records** can cause authentication failures. ### Example #### Existing SPF Record `v=spf1 include:spf.domain.com -all` #### Updated SPF Record with Stackmail `v=spf1 include:spf.domain.com include:spf.stackmail.com -all` ## Verifying Your SPF Configuration ![Spf Record Check 6072](https://media.mailhop.org/autospf/spf-record-check-6072-1779870578629.jpg) _After the DNS changes propagate, you can use an SPF lookup or DNS checker tool to confirm that the record has been published correctly._ A valid **SPF setup** helps improve [sender reputation](https://www.campaignmonitor.com/resources/knowledge-base/what-is-email-sender-reputation/) and supports **stronger email authentication** alongside [DKIM](https://autospf.com/blog/how-dkim-works-a-comprehensive-guide-to-email-authentication/) and DMARC. ![Brad Slavin](https://media.mailhop.org/autospf/images/authors/brad-slavin.jpg) [ Brad Slavin ](/authors/brad-slavin/) General Manager Founder and General Manager of DuoCircle. Product strategy and commercial lead for AutoSPF's 2,000+ customer base. [LinkedIn Profile →](https://www.linkedin.com/in/bradslavin) ## Ready to get started? Try AutoSPF free — no credit card required. [ Book a Demo ](/book-a-demo/) ## Related Articles [ Foundational 17m 10 Reasons The SPF Standard Is Essential For Protecting Your Domain Nov 20, 2025 ](/blog/10-reasons-the-spf-standard-is-essential-for-protecting-your-domain/)[ Foundational 5m 4 ChatGPT and AI-based scams to be wary of in the second half of 2024 Aug 16, 2024 ](/blog/4-ai-and-chatgpt-scams-to-watch-for-in-2024/)[ Foundational 6m 6 Steps to Outplay BEC Attackers Feb 2, 2024 ](/blog/6-steps-to-outplay-bec-attackers/)[ Foundational 4m 7 Myths and Misconceptions about Sender Policy Framework May 31, 2024 ](/blog/7-myths-and-misconceptions-about-sender-policy-framework/) ```json {"@context":"https://schema.org","@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897474","name":"AutoSPF","url":"https://autospf.com","logo":{"@type":"ImageObject","url":"https://autospf.com/images/autospf-logo.png"},"description":"Automatic SPF flattening and email authentication management. 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