Email marketing means sending regular, well-planned emails to people who have given you permission, and building a lasting relationship with them. On social media, the platform decides who sees your post; your email list belongs to you, and your message goes straight to each person's inbox. In this guide we cover the basics, from consent rules to measurement.
What does email marketing do?
Email works especially well when buying decisions take time or customers come back again and again. Each sector uses it differently:
- E-commerce: New products, promotions, abandoned basket reminders and tips after an order.
- Manufacturing and industry: New products, technical documents or trade fair invitations for distributors and purchasing teams.
- Restaurants: A new menu, special evenings and booking reminders.
- Beauty salons: Reminders when the next treatment is due, plus seasonal treatments.
- Pet products: Reminders timed to when food and care products usually run out.
Whatever your sector, the aim of email marketing is not to make a sale with every send. The real goal is to stay front of mind by offering something useful, so you are the first name people think of when the need arises.
Permission, consent and data protection: rules first
Know the rules before you start. In many markets, commercial electronic messages require the recipient's prior consent as a general rule. Some cases, such as messages to businesses, may follow different rules, so assess your own situation against the current regulations.
- Consent rules and registers: Some markets have specific consent rules or official registers for commercial messages, for example Turkey's İYS register or the EU's ePrivacy and GDPR rules. Check whether you need to register or report consents as a sender.
- Data protection: An email address is personal data. Under data protection law (such as GDPR in the EU or KVKK in Turkey), tell people when you collect their address what it will be used for.
- Right to opt out: Every message needs an easy, free way to unsubscribe and information showing who the sender is.
- Record keeping: Keep a record of who consented, when and through which channel. Proving consent is the sender's responsibility.
Because these matters have legal consequences, we recommend asking a legal adviser about the details.
Building and cleaning your list
The value of email marketing depends on the quality of your list. Bought or scraped lists are not based on valid consent given to you, and they get your emails marked as spam. A healthy list is built with permission through your own channels:
- A clear newsletter sign-up form on your website that states what kind of emails you will send and how often.
- A separate, unticked consent box at checkout and account sign-up.
- A sign-up form with consent wording at your trade fair stand or in your shop.
- A confirmation email that verifies the address after sign-up (double opt-in). This filters out mistyped and fake addresses from the start.
If you are setting up an online shop, planning these consent steps early makes life easier; see our article on what to know when launching an online store.
Cleaning your list matters as much as growing it. Remove addresses that bounce. Send a reminder to people who have not opened anything for a long time; if they still show no interest, take them off the list. A small, engaged list usually does better than a large, indifferent one.
Content and design
A good email answers "why did I get this?" in the first line. These points help:
- Sender name: Use a name the recipient recognises instantly, and don't change it often.
- Subject line: Keep it short, clear and honest about the content. Exaggerated claims and needless capital letters damage both trust and your chances of reaching the inbox.
- Preview text: Don't leave the short text shown beside the subject empty; write a sentence that completes it.
- Personalisation: Using the person's name, or sending content based on the products they care about, turns an email into more than a mass announcement.
- Mobile-friendly layout: Many people read email on their phone. Choose a single-column, readable design with buttons that are easy to tap.
- One main action: Ask for just one thing per email, such as viewing a product, booking an appointment or downloading the catalogue.
- Images and text: An email made of a single image looks empty when images don't load. Write the key message as text too, and add descriptive alt text.
Set your sending frequency from the start. Sticking to what you promised at sign-up reduces unsubscribes and spam complaints.
Reaching the inbox: SPF, DKIM and DMARC
Whether an email lands in the inbox or the spam folder is decided by the recipient's email provider. Nobody can guarantee that decision, but good practice tips the odds in your favour. The first step is your domain's authentication records:
- SPF: A DNS record stating which servers may send email on behalf of your domain.
- DKIM: A digital signature showing that the message was not altered in transit and really comes from your domain.
- DMARC: A policy telling providers what to do with emails that fail SPF and DKIM checks, and sending you reports.
You set these records in your domain's DNS, following your email provider's instructions. Large providers such as Gmail and Yahoo expect bulk senders to have them and to offer an easy way to unsubscribe.
In email marketing, sending habits matter as much as the technical setup. Don't send a large volume all at once from a new domain: increase it gradually, watch spam complaints and only write to people who have given permission.
Measurement: which figures should you watch?
- Open rate: Hints at whether your subject line and sender name work. Some email apps load images automatically for privacy reasons, so this figure is not exact; don't base decisions on it alone.
- Click rate: Shows whether the content and button caught people's interest; it is more reliable than the open rate.
- Unsubscribes and spam complaints: The first signs that your content or frequency is missing the mark.
- Bounced emails: Show how much cleaning your list needs.
- Conversions: Add UTM parameters to your links and you can see in GA4 what email visitors do on your site.
Read the figures as trends over time, not send by send. Small tests on subject lines, sending times or content, with the results compared, are the fastest way to learn in email marketing.
Build a steady relationship with your own audience
Email marketing grows stronger over time with a permission-based list, useful content and regular measurement. Starting small and learning from every send is healthier than a big but scattered launch.
If you would like to manage your sends from one place, take a look at our own product, Delta Mailing. You connect your own SMTP accounts, import contacts from Excel or CSV files and build emails with a drag-and-drop editor and sector templates. Scheduled sending, open and click reports, consent records under KVKK (Turkey's data protection law), one-click unsubscribe and integration with Turkey's İYS register are also part of the platform.
To plan your email strategy together, explore our email marketing service or get in touch with us.