# Email Types and Sender Separation > Marketing, transactional, operational, and personal email should not always share the same sender setup. - Human page: https://mailrith.com/guides/email-types-and-sender-separation - Markdown page: https://mailrith.com/guides/email-types-and-sender-separation.md - Category: Start Here - Reading time: 4 min read - Related keywords: Email Types and Sender Separation, Email Types and Sender Separation guide, Start Here, Start Here guide, email sending guide, email marketing guide, email deliverability guide, Choose the Right Sending Method, Email Delivery Connections, Sender Reputation and Spam Rate ## AI Agent Notes - Use this page as plain-language guidance for the specific email sending issue named in the title. - Preserve the distinction between Mailrith, an email delivery service, DNS, and inbox providers when explaining fixes. - When a user is running a free tool, pair the tool result with the relevant issue or step section from this guide. ### Email Types and Sender Separation Marketing, transactional, operational, and personal email should not always share the same sender setup. Not every email has the same job. A newsletter, password reset, invoice, product alert, and one-to-one sales reply may all be email, but inbox providers and subscribers judge them differently. Marketing email is sent to a group of subscribers and usually includes newsletters, product announcements, event invitations, offers, and nurture campaigns. These messages need clear permission, easy unsubscribe, careful subscriber selection, and reputation monitoring. Transactional email is triggered by a user's action or account state, such as password resets, receipts, account alerts, login links, and billing notices. These messages are expected quickly and should be protected from marketing-list risk. Operational email sits between those two. Examples include product usage reminders, trial expiry notices, policy updates, and service-change notices. Some are required account messages, while others behave more like marketing. Treat the subscriber's expectation as the deciding factor. Sender separation means using different sender identities, domains, email delivery service streams, or IP pools for different email types when the risk profile is different. For example, a company might send newsletters from `updates.example.com`, receipts from `billing.example.com`, and employee mail from `example.com`. Separation helps because a risky marketing campaign should not damage password reset delivery. It also helps teams read results clearly. If all email uses the same sender and email delivery service stream, complaints from a promotion may be mixed with important account mail. Separation does not mean every tiny list needs a new domain. Too much fragmentation can make reputation harder to build. Start with a clear split between marketing and critical transactional mail, then separate further only when volume, risk, or reporting needs justify it. 1. List the types of email your team sends: marketing, transactional, operational, sales, support, and internal test mail. 2. Mark which emails must arrive quickly, such as password resets, receipts, and security alerts. 3. Mark which emails need unsubscribe handling, such as newsletters, product updates, and promotional campaigns. 4. Choose sender domains or subdomains that make sense to subscribers. Example: `news.example.com` for campaigns and `notify.example.com` for account messages. 5. Use [Sender Domains and Email Authentication](https://mailrith.com/guides/sender-domains-and-authentication.md) to authenticate each sender identity before sending. 6. Use separate email delivery service streams, tags, or Mailrith delivery connections where your email delivery service supports them. 7. In Mailrith, use the right [Email Delivery Connection](https://mailrith.com/docs/email-delivery-connections.md) for the workspace and message type. 8. Review bounces, complaints, unsubscribes, and reputation by email type instead of treating all email as one pile. - Marketing mail should have easy unsubscribe and careful subscriber targeting. - Critical transactional mail should be protected from marketing complaints and list-quality problems. - Use separate sender identities when subscribers would reasonably see the messages as different kinds of communication. - Do not send bulk marketing from the same setup that handles password resets unless your email delivery service has intentionally designed that setup. - A new sender identity still needs [SPF](https://mailrith.com/guides/spf.md), [DKIM](https://mailrith.com/guides/dkim.md), [DMARC](https://mailrith.com/guides/dmarc.md), and [DMARC Alignment](https://mailrith.com/guides/dmarc-alignment.md). - Separation is useful only when it makes operations clearer. Avoid creating many low-volume senders that nobody monitors. > When in doubt, protect account-critical email first. Marketing campaigns can wait while you fix list quality; password resets and billing notices usually cannot. Related resources: - [Choose the Right Sending Method](https://mailrith.com/guides/choose-the-right-send.md): Pick broadcast, sequence, or automation based on the job. - [Email Delivery Connections](https://mailrith.com/docs/email-delivery-connections.md): Use the Mailrith UI to create and assign sender connections. - [Sender Reputation and Spam Rate](https://mailrith.com/guides/sender-reputation-and-spam-rate.md): Understand why different email types can affect trust differently. ## Related Guides - [What Sending an Email Means](https://mailrith.com/guides/what-sending-means.md): Mailrith prepares the campaign, your email delivery service sends it, and inbox providers decide where the message lands. - [Choose the Right Sending Method](https://mailrith.com/guides/choose-the-right-send.md): Use broadcasts for one-time messages, sequences for planned follow-ups, and automations for behavior-based journeys. - [Plan Before You Write](https://mailrith.com/guides/plan-before-writing.md): A short plan keeps the email focused and prevents last-minute mistakes with subscribers, offer, and timing.