# Mailrith Sending > Mailrith handles sending. Each workspace gets one Mailrith sending address, with the account owner’s name and email as the initial sender name and Reply-To. - Human page: https://mailrith.com/docs/mailrith-sending - Markdown page: https://mailrith.com/docs/mailrith-sending.md - Category: Campaigns & Delivery - Reading time: 7 min read - Last updated: 2026-09-28 - Related keywords: Mailrith Sending, Mailrith Sending documentation, Campaigns & Delivery, Campaigns & Delivery documentation, Mailrith documentation, Mailrith help, Get Ready To Send, Edit Sender Details, Use A Custom Sending Domain, Understand Delivery Status, Moving From An Existing Connection, Troubleshoot Sending, Workspaces, Broadcasts, Double Opt-In ## AI Agent Notes - Use this article as step-by-step Mailrith product guidance, not as legal, financial, or deliverability advice unless the article says so. - Preserve exact Mailrith UI labels from the steps when explaining a workflow. - Prefer Mailrith's product term Subscribers when referring to people on an email list. ## What this guide covers Use your workspace sending address, edit sender details, and set up a custom sending domain. ## Sections - Get Ready To Send - Edit Sender Details - Use A Custom Sending Domain - Understand Delivery Status - Moving From An Existing Connection - Troubleshoot Sending ## Get Ready To Send Mailrith handles email sending. Each workspace gets one Mailrith sending address. The initial sender name is the account owner’s name, and the initial Reply-To is the account owner’s email address. You do not need a separate email delivery account or SMTP credentials. 1. Complete your account verification and plan setup. 2. Open **Workspaces** in the sidebar and select the workspace to open **Edit Workspace**. 3. Find **Sending Domain**, above **Landing Page Domain**. 4. Review **Mailrith Sending Address** and its status. Resolve any setup warning before sending. 5. Open your campaign, review its sending address, and send a test email to an inbox you control before sending to Subscribers. ## Edit Sender Details 1. Open **Workspaces** and select your workspace. 2. Under **Sending Domain**, find the sending address and select **Edit**. 3. In **Edit Sender**, review **Sender Name** and **Reply-To Email**. Use a recognizable name. For the Mailrith address, **Reply-To Email** must be the account owner’s verified email address; any other address shows an error when you click **Save**. Do not leave it empty, because the Mailrith address does not receive replies. To receive replies at a different inbox, add your own sending domain. 4. Select **Save** and wait for confirmation. If saving fails, resolve the displayed problem before relying on the new details. The Mailrith-provided sending address is not an inbox. Its address is assigned by Mailrith. A custom sending domain lets you use your own domain for sender addresses. ## Use A Custom Sending Domain 1. Open **Workspaces**, select the workspace, and find **Sending Domain**. 2. Select **Add Sending Domain**. Enter **Sending Domain**, **Sender Name**, **Sender Email**, and **Reply-To Email**. 3. Select **Get DNS Records**. At your DNS provider, add the exact records Mailrith displays. Do not create a second SPF record when one already exists. 4. For the SPF record on your bounce subdomain, use the value Mailrith shows, such as `v=spf1 include:_spf.mailrithsend.com -all`. This include points to Mailrith's sending servers. Mailrith keeps it up to date, so you do not need to change your DNS when Mailrith adds a server. 5. Return to the workspace and select **Check Domain**. New records usually show up within a few minutes. If a record still shows as not found, wait a little longer and select **Check Domain** again. 6. When the domain passes its check for the first time, Mailrith makes its sender your default sending address automatically. This can happen during a background DNS check, so you do not need to stay on the page. When your default sending address changes, either automatically after verification or when you select **Set Default** and **Save**, Mailrith moves your unsent emails that use the previous default to the new address. This includes Sequences that are already running, Automation emails, and Draft Broadcasts. Emails that use a different address keep it. Scheduled Broadcasts, Broadcasts already sending, and sent Broadcasts keep their address. An email's own Reply-To that the new domain cannot use is cleared, so the email uses the sender's Reply-To. Subscription confirmation emails also use your default sending address. Before you verify a domain, make sure the sender's Reply-To mailbox can receive email, because your running Sequences will start using it. Sending Domain authenticates email. Landing Page Domain controls published page URLs. Configuring one does not configure the other. See [Workspaces](https://mailrith.com/docs/workspaces.md#domain-and-sending) for domain replacement and sender management. ## Understand Delivery Status A queued email is waiting for sending work. Acceptance by Mailrith’s sending system does not mean the recipient’s server has accepted it. Receiving servers may temporarily defer an email, causing delivery to take longer. Even acceptance by a receiving server does not prove inbox placement. Review campaign reports for delivery results, bounces, and complaints. Sending limits, account reviews, or domain problems may delay sending. Do not repeatedly resend an email just because it is delayed: it may already be queued. ## Moving From An Existing Connection When your account moves to Mailrith Sending, each workspace switches to its Mailrith address: - **Sender Email** becomes the workspace’s Mailrith address. - **Sender Name** stays the name from the working connection your Broadcasts, Sequences, and Automations used most. If there is none, Mailrith uses the account owner’s name. - **Reply-To Email** becomes the account owner’s verified email address. Emails that have not been sent yet, including drafts, scheduled Broadcasts, Sequences, and automation emails, switch to the new sender. They use this sender name even if they had their own before. Their own Reply-To is cleared, so they use the sender’s Reply-To, which is the account owner’s verified email address. Review them after the move. Previously sent email history is retained. If you already added your own sending domain, it is kept, but your Mailrith address becomes the default. Select **Set Default** beside your own sender and update the **Sender** in your emails if you want to keep using your domain. Emails whose old sender was unavailable, for example because its connection was disabled or removed, are paused instead of sent. Scheduled Broadcasts go back to drafts and their schedule is removed, Sequences that were turned on are turned off, and active Automations are paused. They do not start sending on their own. If this happened, **Sending Domain** says: “Some emails used an unavailable sender and remain paused or unscheduled. Review your broadcasts, sequences, and automations before enabling them.” Old external connections are disabled after all workspaces in the account switch successfully. The Email Delivery Connections page is retired. Migration does not activate draft broadcasts or disabled sequences and automations. ## Troubleshoot Sending - **No Active Sending Address:** Click **Open Sending Settings** on the Broadcasts, Sequences, Automations, or Forms page to open the workspace's **Sending Domain**. Team members who cannot manage senders should ask the workspace owner to resolve setup or permission issues. - **DNS Still Pending:** Compare the displayed records with your DNS provider, correct mismatches, and verify again after changes have propagated. - **Your SPF Record Lists IP Addresses:** Domains added before Mailrith used the include may have a bounce subdomain SPF record that starts with `v=spf1 ip4:`. It still works for now, but it would need editing every time Mailrith's sending servers change. Open **Workspaces**, select the workspace, and select **DNS Records** under **Sending Domain**. At your DNS provider, replace the old SPF value with the SPF value Mailrith shows. Keep only one SPF record, then select **Check Domain**. - **Replies Go To The Wrong Inbox:** Check Reply-To Email in Edit Sender and review the campaign’s saved sender details. On the Mailrith address, Reply-To must be the account owner’s verified email address. To receive replies at a different inbox, add your own sending domain and use an address on it. A Broadcast, Sequence, or Send Email step with a blank **Reply-To Email** uses the sender’s Reply-To; an address entered there replaces it for that email only. - **Test Failed:** If a test email shows **Test Failed**, check the sender and content first. You can also see this message after reaching the test email limits: 24 test emails in any 24 hours and 6 different addresses in any hour, shared across all workspaces owned by the same account. Test emails to the workspace owner's verified account email do not count toward these two limits. Mailrith also limits how many emails one inbox can receive in a short time, so repeated tests to the same inbox can pause for a while. Wait and try again. - **Delayed Or Failed Delivery:** Review campaign results and contact Mailrith with the workspace, campaign, and time of the problem. Do not share credentials. - **Sending Is Paused For Your Account:** Mailrith paused all sending for your account after delivery problems in your recent emails. The notice appears above the list on **Broadcasts**, **Sequences**, **Automations**, and **Forms**. Emails that have not been sent are saved. Click **Subscribers** in the left sidebar, use the status filter to find **Bounced** and **Complained** Subscribers, and remove them. Check how your lists were collected, then contact Mailrith support. - **Broadcast Stopped:** Delivery results suggested that sending more could harm your sender reputation. Open the Broadcast in **Broadcast Statistics**, read the message, and fix what it describes. Then contact Mailrith with the Broadcast name. A stopped Broadcast continues only after Mailrith reviews it. - **Some Subscriber Sources Are Paused:** Open **Workspaces**, select the workspace, and read **Sending Domain**. A Subscriber source is a group of Subscribers who joined the same way, such as one import. Remove old or misspelled addresses, check that every Subscriber asked to hear from you, and contact Mailrith so the team can review the paused sources. Subscribers from your other sources can still receive your emails. While a source is paused, **Send Now** and **Schedule** do not start a new Broadcast that includes Subscribers from it, and the message names each paused source, such as the import date and the tag it added. Change the Broadcast's **Subscribers** filters to leave them out, or wait until Mailrith releases the source. Subscribers added before Mailrith recorded how Subscribers joined cannot be left out with a filter, so that source needs a review by Mailrith. A scheduled Broadcast that still includes a paused source when it is due does not start and shows why. - **A Broadcast Was Stopped** or **Some Broadcasts Were Stopped:** This notice in **Sending Domain** means Mailrith stopped a Broadcast recently. Open **Broadcasts** and follow the steps for **Broadcast Stopped**. - **Some Emails Are On Hold** or **An Email Is On Hold:** This notice on a Sequence or Automation means some emails are waiting because of a delivery problem. It is separate from the **Paused** status you choose. Read **Sending Domain** to see what to fix, then contact Mailrith. Use permission-based Subscriber lists and start with engaged Subscribers. Mailrith Sending does not guarantee inbox placement. ## Related Guides - [Workspaces](https://mailrith.com/docs/workspaces.md): Workspaces keep separate brands or clients isolated within one Mailrith account. Solo, Pro, Agency, and Agency add-ons define how much workspace room the account owner has. - [Broadcasts](https://mailrith.com/docs/broadcasts.md): Use broadcasts for newsletters, product launches, announcements, and any message you send once to selected subscribers. Compose, target, test, and send or schedule the campaign in one workflow. - [Double Opt-In](https://mailrith.com/docs/double-opt-in.md): Double opt-in helps prove that a Subscriber controls the email address they submitted. In Mailrith, you configure double opt-in on forms and landing pages so each signup path can have its own confirmation email, success experience, and saved privacy evidence.