Bulk email remains an effective way for businesses to deliver information, promote products, and build relationships with customers. Whether you have a shop in Mong Kok, run a digital marketing company in Tsim Sha Tsui, or sell products online to customers across Hong Kong, bulk email can help you build a stable communication channel. However, with increased competition in 2025, you must master the right methods to avoid being flagged as spam, improve email deliverability, and increase open rates.
This guide will share best practices for bulk email that Hong Kong businesses should learn by 2025 , helping you continuously improve email performance, increase user engagement, and achieve better business results.
What is Bulk Email?
Bulk email refers to sending a single email to a large number of recipients at once. Businesses typically use it to send news, promotions, product launches, event invitations, payment reminders, etc.
Unlike regular one-on-one emails, bulk emails require more careful planning and strategy, otherwise they are prone to triggering spam filters.
Effective bulk email offers the following benefits:
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Low cost, high exposure
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Building customer loyalty
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Increase website traffic
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Increase sales conversion
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Delivering important updates and information
For Hong Kong businesses, Bulk Email is a cost-effective marketing method, especially important given the ever-increasing cost of advertising.
Bulk Email Best Practices
Establish and maintain a high-quality email list
The quality of your email list determines the success of your Bulk Email subscription. Please only send emails to people who are genuinely interested in subscribing . Hong Kong users highly value privacy and transparency, so please ensure your subscription process is clear and simple.
Never purchase email lists. Purchasing lists will result in a large number of bounced emails, spam complaints, and a damaged mailing reputation, ultimately affecting your delivery rate.
Please clean up the list regularly and remove inactive users to maintain good list hygiene.
Email personalization and segmentation
Everyone has different interests, so “segmentation” is key to successful bulk email. You can categorize your content as follows:
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Regions (Hong Kong Island, Kowloon, New Territories)
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Customer types (new customers, returning customers, VIPs)
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Historical purchase records
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Frequency of interaction with email
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Industry or nature of work
Personalization is also very important, such as adding usernames and recommending related products. The more relevant the content, the easier it is to increase open rates and click-through rates.
Optimize mobile reading experience
Most Hong Kong users check their emails on their mobile phones. If the email layout is not mobile-friendly, recipients are likely to close it immediately.
Please ensure:
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Simple layout
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Easy-to-read font
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Large and easy to click
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The image has been compressed and loads quickly.
A good mobile experience can effectively improve click-through rates and overall interaction.
Create interactive and engaging content
Hong Kong users receive a large volume of emails daily, so your content must be clear and engaging. You can join:
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Short sentences and paragraphs
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Clear CTA button
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Images, GIFs, product carousels
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Mini survey, quick poll, mini recommendation list
Avoid lengthy content or overly sales-oriented language. Concise, practical content leads to higher engagement.
Choose a suitable delivery time
Delivery time directly impacts open rates. Based on Hong Kong user habits, the following time slots are generally preferred:
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7:00 AM – 9:00 AM
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Lunch time: 12:00–14:00
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17:00–19:00
You can also use A/B testing to find the best delivery time.
Tracking user behavior and activity performance
Understanding how recipients interact with your emails is key to improving your campaign. Please track this regularly:
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Open rate
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bounce rate
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Conversion rate
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Spam Complaints
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List growth rate
For example, a low open rate may be due to an unattractive subject line; a low click-through rate may be due to unclear content; and a high bounce rate may be due to an unclean contact list.
Improving email delivery rates and compliance with regulations
Deliverability determines whether your emails actually appear in your inbox and not in your spam folder. Methods to improve deliverability include:
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Use a trusted Bulk Email tool
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Warm-up mailing domain
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Enable SPF, DKIM, and DMARC authentication
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Avoid using spam words
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Controlling spam complaint rates
Regarding compliance, please adhere to Hong Kong’s privacy regulations and the Global Email Code.
You must:
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Add a clear unsubscribe link
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Do not mislead the subject line
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Send only to users who agree to receive
These practices can protect your mailing reputation and prevent your mail from ending up in the spam folder.
Write engaging title lines and preview text.
The subject line is the first hurdle in determining the open rate. Please keep this in mind:
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concise
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Clear
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direct
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attractive
Examples:
– “This week’s latest deals await you!”
– “Your 2025 must-buy list is ready!”
– “Exclusive limited-time offers, check them out now!”
The preview text should supplement the main content to make the recipient more willing to open the email.
Improve results through A/B testing
A/B testing is one of the most effective methods to improve email performance. You can test:
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Theme line
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Delivery time
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CTA button
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Image or layout design
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Content length
Test with a small group of users first, then send the best-performing version to the rest of the list. This method ensures that each campaign is better than the last.
Hong Kong Common Bulk Email Questions and Answers
1. Is Bulk Email effective in Hong Kong?
Yes. Email is a low-cost, long-lasting promotional method. Many local brands still rely on it to maintain customer relationships.
2. Will bulk email affect my domain reputation? Yes
, if handled improperly. However, as long as you keep your list clean, perform verification properly, and avoid spam, you can maintain a good reputation.
3. How to increase open rates?
Personalized subject lines, optimized delivery times, targeted delivery, and providing valuable content are the most effective methods.
Conclusion
Bulk email will remain an indispensable marketing strategy for Hong Kong businesses in 2025. With proper list management, content optimization, deliverability control, audience segmentation strategies, and continuous testing, you can build a stable and effective email marketing system.
By adhering to these best practices, your Bulk Email will be more attractive, compliant, and secure, and will truly bring greater results and growth to your Hong Kong business.