Last updated:
09.03.2026
Email Marketing
Email marketing is one of the oldest and most widely used forms of digital direct marketing: companies send targeted messages directly to the email inboxes of their contacts. With the right strategies and tools, email marketing remains one of the most powerful marketing channels.
hellomateo complements email marketing with WhatsApp as a second direct channel – for even higher open rates, faster response times, and holistic customer communication.
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E-mail marketing refers to the targeted sending of advertising messages, newsletters, transactional messages or automated email sequences to a defined recipient list. It is one of the most cost-effective marketing tools – with an average ROI of up to 4,200% according to industry studies. Types of Email Marketing: Newsletters: Regular content and offers to the subscriber list. Transactional Messages: Order confirmations, shipping information, password resets. Marketing Automation: Automated sequences based on user behavior. Re-engagement Campaigns: Reactivating inactive contacts. Email Marketing vs. WhatsApp Marketing: Emails land in the inbox but compete with hundreds of other messages. WhatsApp messages appear directly on the lock screen – with open rates of over 90% compared to an average of 20-30% for emails. hellomateo recommends combining both channels for maximum reach.
Email Marketing and GDPR
Email marketing is also subject to the GDPR and the German Unfair Competition Act (UWG). A valid opt-in – ideally via double opt-in – is mandatory. hellomateo offers both channels with integrated opt-in processes and GDPR-compliant data management.
Email Marketing as a Complement to WhatsApp
Combining email and WhatsApp creates an omnichannel strategy that reaches customers across multiple channels and leverages the strengths of both media: email for longer content and documentation, and WhatsApp for fast, personal communication.