Building a content plan for email marketing

A content plan helps you send the right emails at the right time, without scrambling for ideas or sending inconsistently. Before you open the email builder, it is worth thinking through what you want to send, to whom, and how often. The decisions you make at this stage shape everything downstream — your sending schedule, how you structure your contact base, and which Flexmail features you will use most.

Start with what you want email to achieve

Email can serve different purposes depending on your business.


Common goals include:

  • Driving sales or sign-ups by promoting products, services, or events.
  • Building loyalty by staying in regular contact with existing customers.
  • Onboarding new subscribers and guiding them toward a first action.
  • Re-engaging contacts who have stopped opening or clicking.

Your goals determine the mix of emails you send. A brand focused on retention will look very different from one focused on driving purchases. Identifying your primary goal upfront keeps your content plan coherent rather than a collection of unrelated sends.

Decide which types of email to include

Most email programs draw from a mix of the following types. You do not need all of them — choose the ones that match your goals and add others as your program matures.


Newsletters

Regular sends with content, updates, or insights. Newsletters build the habit of opening your emails and maintain a relationship between sends. They work best when they have a consistent format and arrive on a predictable schedule — contacts learn to expect them.


Promotional emails

Offers, product launches, announcements, and seasonal campaigns. These have a clear call to action and often a time limit. They drive short-term results but can fatigue contacts if sent too frequently or without enough substance around the offer.


Onboarding sequences

Automated emails that go out after someone subscribes or signs up, guiding them toward a first meaningful action. In Flexmail, these are set up as automations triggered by a contact joining a list or completing a specific action. You build the sequence once and it runs automatically for every new contact.


Re-engagement emails

Sent to contacts who have not opened or clicked in a defined period. A re-engagement campaign gives inactive contacts a reason to return — or confirms that they no longer want to hear from you, which is useful information for keeping your list healthy.


Note Transactional emails — order confirmations, password resets, receipts — are a separate category in Flexmail and are handled by the transactional product rather than the marketing module. See "Marketing email vs. transactional email" for the distinction.

Finding the right content mix

Within your email program, the balance between promotional and informational content matters as much as the types of email you send. Contacts who only ever receive offers quickly stop opening, because there is nothing in it for them unless they happen to be in a buying mood at that moment. A mix of content gives people a reason to open even when they are not ready to buy.


Types of content to include

Beyond promotions, consider weaving in some of the following:

  • How-to content and practical tips related to your product or industry. This positions you as useful rather than just promotional, and it works even for contacts who are not yet customers.
  • Curated resources — relevant articles, tools, or links your audience will find valuable. This works well in newsletters and keeps the email feeling editorial rather than sales-driven.
  • Customer stories and examples. These function as social proof, but they are also genuinely interesting content. A concrete story of how someone used your product is more compelling than a list of features.
  • Behind-the-scenes content — team updates, how something is made, what is coming next. This builds familiarity and trust over time, particularly for smaller brands where personality matters.
  • Seasonal or timely commentary tied to what is happening in your industry or in the broader world that is relevant to your audience.

Thinking about the mix

A useful starting point: for every purely promotional email you send, plan at least one email where the reader gets something useful regardless of whether they buy anything. This is not a strict rule, but it reflects a principle that tends to hold — contacts stay subscribed when they get value, not just offers.

Within a single email, mixing content types often works better than sending purely promotional messages. A newsletter with a useful article, a short tip, and one promotional block at the end tends to get more consistent engagement than a dedicated sales email, because contacts open it expecting value. The promotional block gets seen by people who would have ignored a pure promotional send.


Support tip Purely promotional emails work best when you have a strong offer with genuine urgency — a real deadline, a meaningful discount, a limited quantity. A weak offer with no added value around it gets ignored. If the offer is not strong enough to carry the email on its own, add content that makes it worth opening.

Think about your audience

Sending the same email to your entire list rarely produces the best results. Most contact bases contain meaningful differences — new subscribers versus long-term customers, people interested in different products or topics, contacts at different stages of the buying process.


In Flexmail, you have two main tools for sending to specific groups:

  • Segments filter your contacts based on properties or behaviour — for example, contacts who live in a certain region, have opened your last three emails, or have not purchased in 90 days. Segments are defined by rules and update automatically as contacts meet or stop meeting the criteria.
  • Interests let contacts self-select the topics they want to hear about. When someone subscribes or visits your unsubscribe page, they can indicate their preferences, and you can use those preferences to send only what is relevant to them.

Planning your content around specific groups from the start — rather than treating targeting as an afterthought — leads to more relevant sends and better engagement.

Set a sending frequency

There is no universal right answer for how often to send. The right frequency depends on your audience, how much content you have, and what your contacts signed up expecting. Different parts of your contact base also warrant different treatment.


New subscribers

The first few weeks after someone subscribes are when engagement is highest and the relationship is being formed. This is the right time to send more frequently — an onboarding sequence of three to five emails in the first two to three weeks is reasonable. These emails should deliver on what the subscriber signed up for: introduce your brand, explain what to expect, and give them a reason to keep opening. After the sequence ends, new contacts move into your regular sending cadence.


Engaged subscribers

Contacts who open regularly and click occasionally are your most valuable audience. They have self-selected into high engagement and can usually handle a higher sending frequency without fatigue. If you send weekly to your full list and see strong consistent open rates, that is a signal that your engaged segment could handle even more. You can use this group to test new content types or send more targeted follow-ups without worrying about alienating them.


Disengaged contacts

Contacts who have not opened in three to six months behave very differently from engaged ones. Sending your full frequency to this group does not help them re-engage — it just accumulates ignored emails and hurts your deliverability over time, because inbox providers use engagement signals to decide how to route your mail. For this group, consider either a targeted re-engagement campaign or reducing their send frequency until they show signs of activity. If they do not re-engage after a deliberate attempt, suppressing them protects the deliverability of your overall program.


Seasonal audiences

Some businesses have contact bases that are naturally seasonal — a gift retailer peaks around the winter holidays, a travel brand peaks in spring and summer. For these audiences, planning a higher frequency during the relevant season and a quieter period outside of it is more honest than maintaining an artificial year-round cadence. Contacts who re-engage strongly during your peak season are telling you something about when they want to hear from you.


B2B versus B2C

Business audiences generally prefer less frequent email with higher content value per send. A monthly email with substantial, relevant content tends to outperform a weekly email with thinner material for professional audiences. B2C audiences are typically more tolerant of frequent sends, especially for brands they have a strong affinity with, but the same principle applies: each email should give the reader something worth opening for.


Note The clearest signal that you are sending too often is a rising unsubscribe rate or a declining open rate over several sends. Start conservatively and increase only if engagement holds. It is easier to increase frequency gradually than to rebuild a list damaged by over-sending.

Build a sending calendar

A simple calendar helps you see planned sends at a glance, avoid gaps and overlaps, and coordinate email with other marketing activity.


For each planned send, decide:

  • What type of email it is.
  • Who receives it — the full list, a segment, or contacts with a specific interest.
  • When it goes out.
  • What action you want the reader to take.

A spreadsheet works well for this. You do not need dedicated planning software. The goal is to have a single place where planned sends are visible so nothing gets forgotten and nothing collides.


Support tip Plan at least four to six weeks ahead for promotional emails so you have time to write, design, and test before the send date. Newsletters and automations can be prepared further in advance since they are less time-sensitive.

Map your plan to Flexmail

In Flexmail, messages and campaigns are separate. A message is the email content and design — the body of the email. A campaign wraps a message with the send settings: who receives it, the subject line, the preheader, and when it goes out.

This separation is useful when planning. You can build messages in advance — writing and designing the content when you have time — and set up campaigns separately when you are closer to the send date. The same message can also be reused across multiple campaigns, which is practical for recurring content like a template you refresh each month.

Automated sequences use Flexmail automations. These are triggered by contact actions — when someone subscribes, clicks a link, or reaches a date — and run without a manual send each time. If your content plan includes an onboarding flow or a re-engagement sequence, automations are how you implement them.

Review and adjust

A content plan is a starting point. After each send, look at the results:

  • Open rate shows whether your subject lines and sender name are earning attention.
  • Click rate shows whether the content is driving action.
  • Unsubscribes after a specific send often point to a mismatch between what contacts expected and what they received.

Use what you find to adjust your next sends — the topics you cover, the frequency, the segments you target. Plans that get reviewed regularly stay useful; plans that get filed away quickly go stale.

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