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Compare eSterling Ltd vs Mailstructures

Side-by-side comparison of features, pricing, services, ratings and more.

Winner

eSterling Ltd

Cold Email Outreach Website

We help you find your next customer. One of Birmingham's longest established creative agencies, passionate about web design and delivering websites that impress and convert. We build lasting relationships and use digital marketing strategies to help you achieve business goals and increase revenue.

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Mailstructures

Cold Email Outreach Website

Mail Structures specializes in high-volume email infrastructure, offering scalable solutions for cold email outreach including custom domain setup, email warm-up, and deliverability optimization. Designed for businesses sending up to 100,000 emails daily per address, it provides a cost-effective alternative to traditional ESPs.

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Feature Comparison

Attribute	eSterling Ltd	Mailstructures
Category	Cold Email Outreach	Cold Email Outreach
Rating	Winner +4.5 higher	-
Location	Birmingham, England, United Kingdom	Toronto, Canada
Services	Advertising PPC Branding Online Reputation Management Content Marketing Content Strategy Copywriting Storytelling Marketing Automation Email Marketing SEO Link Building Local SEO Mobile SEO Technical SEO Web Development UX Design Web Design Website Maintenance Branded email infrastructure setup Custom domain and email address configuration Email warm-up and reputation management Deliverability optimization Blacklist monitoring and resolution Technical troubleshooting and support Hosting and server configuration	Advertising PPC Branding Online Reputation Management Content Marketing Content Strategy Copywriting Storytelling Marketing Automation Email Marketing SEO Link Building Local SEO Mobile SEO Technical SEO Web Development UX Design Web Design Website Maintenance Branded email infrastructure setup Custom domain and email address configuration Email warm-up and reputation management Deliverability optimization Blacklist monitoring and resolution Technical troubleshooting and support Hosting and server configuration
Industries	B2B Services Ecommerce Legal Services Manufacturing	-
Pros	Strong focus on building long-term relationships and understanding client business	Unlimited emails for one fixed cost Sending capacity of 100K emails per day per address Unlimited scalability One structure for all campaigns Cost-effective at $1.67 per 10,000 emails
Cons	Geographic focus is primarily the UK, which may limit appeal for international clients. No transparent pricing tiers or packages listed, making initial budget estimation	No verified client reviews available on platforms like Clutch or G2 Requires technical setup and ongoing management
Website	Visit Site	Visit Site

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Free Plan Available

You shouldn’t have to overpay for cold email tools. With Mystrika, you won’t.

It does cold email warmup, sequences, unified inbox, and AI writing - all in one place. Every other tool that does this charges somewhere between $100 and $500 a month. Mystrika has a free plan. 500 prospects. No expiry. No card.

The people who consistently book meetings from cold email aren’t smarter. They just stopped leaving money on the table.

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