Fastmail

Introducing the twom database format We replaced the twoskip database format with something faster and better.

🚀 Fastmail’s IMAP just got faster.

We’ve rolled out TWOM — a new database format with smarter storage, fewer slowdowns, and better performance. It’s now live across all servers.

Read more:
www.fastmail.com/blog/introdu...
#Fastmail

Addressing Privacy Fatigue Privacy fatigue is a real feeling — here's how to make it manageable

🔒 Privacy fatigue is real, but you don’t have to do it all at once.


This #PrivacyAwarenessWeek, start with one easy win: use a password manager.
Small steps = better control of your digital life. #Fastmail #PAW2025

Read more:
www.fastmail.com/blog/address...

A revamped Fastmail inbox We’ve rolled out an updated look to your message list, in both our webmail and mobile apps.

📥 Fastmail’s inbox has been thoughtfully refreshed — now with a cleaner layout, improved usability, and more ways to customize your experience on web and mobile.

Learn more: fastmail.com/blog/revampe...
#ProductivityTips #Fastmail

Happy International Email Day Celebrate International Email Day with us! Discover why email still rules and how Fastmail is making it better every day.

📬 Happy International Email Day!

At Fastmail, email isn't just our business — it's our passion. Open standards, privacy, and real control over your inbox? That’s worth celebrating. 💌

#InternationalEmailDay #Fastmail

www.fastmail.com/blog/happy-i...

The evolution of the advanced fee scam Advanced fee scams have evolved into fake job offers. Learn how to spot them and protect your personal data from scammers.

🔍 Advanced fee scams have evolved into fake job offers. Learn how to spot them and protect your data from scammers.

📖 Read more: fastmail.com/blog/the-evo...

#CyberSecurity #JobScams #Fastmail

Dec 20: How Fastmail uses Fastmail! Discover how our support team use their favorite email features in their daily workflows and personal lives.

Advent Day 20: 💡How Fastmail uses Fastmail.
From Labels to Snooze and Schedule Send, we rely on our features every day. Curious how we use them? Discover tips from our team and find your new favourite feature!

🔗 Learn more: www.fastmail.com/blog/how-fas...
#FastmailAdvent

Dec 19: Building offline: mail storage How we made your mail work fast offline.

Advent Day 19: ✉️ Building offline: mail storage. Neil Jenkins explores how Fastmail handles large volumes of data to make email access seamless—even when you're offline. This marks the final post in our offline mini-series.

Read more. #FastmailAdvent #tech

Dec 18: Building offline: syncing changes back to the server How offline changes are tracked and replayed.

Dec 18: 🔄 Building offline: syncing changes.

How do we sync offline changes? Our hybrid approach logs changes & patches updates for efficient syncing & smooth conflict resolution. Edits merge seamlessly when back online.

Read more: www.fastmail.com/blog/offline...
#FastmailAdvent

Dec 17: Building offline: general architecture A technical deep dive into how we added offline support to Fastmail.

Dec 17: 🔨 Building offline: general architecture.
In today’s Advent post, Neil Jenkins explores the architecture behind Fastmail’s new offline support. Learn how we built a caching layer to handle JMAP requests directly on your device.

Read more: www.fastmail.com/blog/offline...
#FastmailAdvent

Offline support now in public beta Use Fastmail offline on your phone and on the web.

Advent Day 16: 🚀 Offline support now in public beta! Use Fastmail offline on your phone and on the web. Read mail and reply, view and edit your contacts, update your calendar, and more, all when you're without internet.

Learn more: www.fastmail.com/blog/offline...

Dec 15: Platform Team working agreement An inside look at the lifeguards who monitor, protect, and improve our internal systems.

Advent Day 15: 🙌 Behind Fastmail's platform magic lies a strong team and a clear working agreement. From proactive monitoring to collaborative problem-solving, our platform engineers ensure reliability.

Learn more: www.fastmail.com/blog/platfor...
#FastmailAdvent

Dec 14: On-Call Systems How Fastmail makes on-call work

Day 14 of our Advent Series: 🚨Dive into the tech behind Fastmail's on-call systems! From alerts and incident management to balancing engineer well-being, see how we keep services running smoothly.

Read more
#Tech #FastmailAdvent

Dec 13: It’s knot DNS. There’s no way it’s DNS. It is DNS! How we upgraded our DNS servers to Knot DNS

🔮 On this spooky Friday the 13th, we're banishing bad luck from our DNS setup! Learn how Fastmail’s move to Knot DNS transformed potential domain nightmares into a streamlined, reliable dream.

Read about the change that keeps your email running smoothly. #FastmailAdvent

Dec 12: Following the Sun Keeping Fastmail going around the clock

Dec 12:☀️Following the Sun. How does Fastmail deliver 24/7 support? With a "Follow the Sun" model, our teams ensure seamless, round-the-clock service.

Learn how we keep the mail flowing: www.fastmail.com/blog/followi...
#FastmailAdvent

Dec 11: Meet the team—Marc Meet Marc, our Head of the new Trust, Abuse, and Deliverability team.

Day 11 of #FastmailAdvent: Meet Marc, our Head of the new Trust, Abuse, and Deliverability team. With 10+ years at Fastmail, he ensures smooth mail flow, loves memos & labels, and stays active cycling.

Dec 10: Sunsetting Pobox Pobox is Fastmail now, but we’re still in love with email.

Day 10 of our Advent series: After 30 years, Pobox has merged into Fastmail. A bittersweet end of an era but a smooth transition to an exciting new chapter. Thanks to everyone who made it happen—here’s to the future!

#FastmailAdvent

Dec 9: Building a blog A quick look at the tools we used to build our new blog & marketing site.

Dec 9: 🛠️ Building our blog, as part of #FastmailAdvent, we’re taking a look at how we transformed our blog—moving from WordPress to Eleventy for simplicity, speed, and efficiency.

Dec 8: Guiding principles The principles that inform how we work at Fastmail

Dec 8: 🌟 Guiding Principles.
Our principles shape everything we do:
🌐 Be a good internet citizen
🔧 Build the future
🤔 Seek understanding
💬 Value discussion

These values guide us to deliver better email, read more:
#FastmailAdvent #Company

Dec 7: Revision of the Core Email Specifications The EMAILCORE working group at IETF is updating the core email specifications

Dec 7: 💌 Revision of the Core Email Specifications.

The IETF is updating core email standards (SMTP & IMF) for clarity and modern use—keeping email running smoothly since 2008.

Learn about the updates shaping email’s future.
#FastmailAdvent #OpenTech

Dec 6: Twoskip and more The twoskip database is stable and fast, but we can do even better

Fri 6: 🌟 Dive into the world of TwoSkip—Fastmail’s innovative way to speed up database queries and improve performance.

#FastmailAdvent #technology

Dec 5: MySQL InnoDB innodb_trx is cached The value of information_schema.innodb_trx is not reliable, it is cached

📢 Dec 5: MySQL InnoDB innodb_trx is cached. Rob Mueller dives into transaction IDs and MODSEQ optimisation in Fastmail's latest Advent blog.

Learn how caching impacts ID generation and how Fastmail tackled the challenge for smoother JMAP syncing.

#FastmailAdvent #JMAP

Dec 4: Meet the team — Bek Meet Bek Fraser, Head of People and Culture at Fastmail.

👋 Meet Bek, our Head of People & Culture! In 10 months, she’s built a global skills framework and shaped our culture. Her fave feature? Memos! Outside work, she loves music, DIY, and her pup Baxter.

Learn more: www.fastmail.com/blog/meet-th...

Dec 3: On Moving House - Bringing a new Datacentre Online Fastmail moved both our datacenters in just a few weeks in July this year

Dec 3: On Moving House – Bringing a new Data Centre Online. Fastmail moved both our Data Centers in just a few weeks in July this year.

Dec 2: Throwback: Security - Confidentiality, Integrity, and Availability Security is more than just encryption - read about how Fastmail balances security considerations

Dec 2: ⏪ Throwback: Security - Confidentiality, Integrity, and Availability. Security is more than just encryption - read about how Fastmail balances security considerations.

Dec 1: Mission Statement Our mission statement: Fastmail makes email better

Dec 1: Our Mission Statement. It’s at the heart of everything we do—from delivering fast, reliable service with real human support to leading the way in standards and open source.

Learn more in the first post of our 2024 Advent series: www.fastmail.com/blog/mission...

Fastmail Advent 2024 24 posts for the first 24 days of December 2024 - overview page

🚀 This December, we’re sharing 24 posts in 24 days! 🎉 Each day brings something new—insights into our standards work, team spotlights, product updates, or throwbacks to past favourites.

Visit the Fastmail Advent 2024 Overview to follow along daily.
www.fastmail.com/blog/fastmai...