--- title: Configure Swell emails to come from your domain description: Delegate a custom subdomain to facilitate easy email authentication --- [Skip to content](https://support.swellcx.com/en/knowledge/configure-swell-emails-to-come-from-your-domain#main-content) English Show submenu for translations [Customer portal](https://support.swellcx.com/tickets?hsLang=en) ![Swell\_Logo\_Magenta.svg\]](https://support.swellcx.com/hubfs/Swell_Logo_Magenta.svg) Open main navigation Close main navigation - English Show submenu for translations - [Customer portal](https://support.swellcx.com/tickets) - Go to swellcx.com Go to swellcx.com Hey there! How can we help you? - There are no suggestions because the search field is empty. 1. [Knowledge Base](https://support.swellcx.com/en/knowledge?hsLang=en) 2. [Product Help](https://support.swellcx.com/en/knowledge/product-help?hsLang=en) # Configure Swell emails to come from your domain ## Delegate a custom subdomain to facilitate easy email authentication ### Introduction When Swell sends email on your behalf, by default it is sent from a Swell-owned domain, with a contact name that makes it clear to recipients that we are communicating on your behalf. For example, it might appear like this in a recipient's inbox: **Your Brand Name (via Swell) **\ Importantly, this email address is used for outbound messages only. When a recipient clicks **Reply** in an email from Swell, their reply will be addressed to the address you specify in the **Reply To** field in your message template (for example, **support@yourbrand.com**). This makes it easy for customers to reach you while maintaining email authentication requirements. ### Customizing email origin via DNS record delegation If you'd prefer to have Swell emails come directly from your own domain, you can add DNS records to your domain which allow Swell to authenticate and send email on your behalf. You will need administrator access to the DNS records for your domain in order to accomplish this. #### Instructions for configuring custom domain delegation **Note**: Changes to your DNS records can take up to 48 hours to propagate. 1. Identify which domain or subdomain you would like to send email from. For example, you might choose a root domain like **mydomain.com** or a subdomain like **mail.mydomain.com**.  2. Create a CNAME record on your selected domain that points to Swell. 1. Set the **name** of the record to `swell._domainkey.`, substituting your selected domain or subdomain (without brackets). 2. Set the **value** of the record to mg.swellcx.com 3. Save the record. Note that some DNS providers may automatically append your domain name to to the record name. If this happens, only include the part before your domain name (ending in `._domainkey`). 3. If your domain has a DMARC policy, and/or you already have an SPF record, update it to include Swell as a sender. 1. If you already have an SPF record, it likely looks something like this: 1. `v=spf1 ~all` 2. Add `include:mg.swellcx.com` separated by single spaces. You can insert it anywhere after `v=spf1` and before the `all` statement. 4. If you have a published DMARC policy, ensure it permits sending from your desired domain or subdomain. 1. If your DMARC policy is set to **strict**, the CNAME and SPF records above must be applied to the exact domain or subdomain you wish to send Swell emails from. 1. These values indicate a strict alignment policy: `adkim=s; aspf=s;` 2. A **relaxed** DMARC policy will allow sending from the root domain or any subdomain with a matching root domain. 1. Relaxed alignment is the default value, or specified with `adkim=r; aspf=r;` 5. Contact your Customer Success representative or [reach out to our Support team](https://support.swellcx.com/tickets/new?hsLang=en) to confirm the domain you'd like to send from. 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