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lettermint.co
Lettermint
@lettermint.co
Privacy-first transactional emails that deliver. Hosted in the EU 🇪🇺

Sign up for the waitlist 👉 https://lettermint.co
𝑹𝒆𝒂𝒅𝒚 𝒇𝒐𝒓 𝑪𝒚𝒃𝒆𝒓 𝑴𝒐𝒏𝒅𝒂𝒚?

In one week, your emails face the strictest spam filters of the year. Providers like Gmail & Outlook are already in holiday mode.

Make sure your campaigns are prepared
November 24, 2025 at 11:02 AM
𝗞𝗻𝗼𝘄𝗹𝗲𝗱𝗴𝗲 𝗧𝗵𝘂𝗿𝘀𝗱𝗮𝘆 📚

SMTP: the backbone of email since 1982.

Every email you send travels through #SMTP servers, but how does it actually work? We explain the protocol that powers billions of emails daily.

Learn more
November 13, 2025 at 11:00 AM
𝑩𝒍𝒂𝒄𝒌 𝑭𝒓𝒊𝒅𝒂𝒚 𝒊𝒔 𝒂𝒓𝒐𝒖𝒏𝒅 𝒕𝒉𝒆 𝒄𝒐𝒓𝒏𝒆𝒓!

During the holiday season, spam filters from providers like Gmail & Outlook become much stricter. Your campaigns could suddenly end up in spam.

Don't let your campaigns end up in spam
November 3, 2025 at 11:00 AM
𝗞𝗻𝗼𝘄𝗹𝗲𝗱𝗴𝗲 𝗧𝗵𝘂𝗿𝘀𝗱𝗮𝘆 📚

DKIM2 is coming, and it fixes what DKIM can't.

After almost 20 years, DKIM gets a major security upgrade. DKIM2 is currently in development and brings better email security. We wrote an article explaining what DKIM2 is and how it differs from DKIM.

Learn more
October 30, 2025 at 10:56 AM
𝙏𝙚𝙖𝙢 𝘼𝙋𝙄 𝙞𝙨 𝙣𝙤𝙬 𝙞𝙣 𝙥𝙧𝙚𝙫𝙞𝙚𝙬! 🔗

Step up your integration game. Add domains, create projects, retrieve emails, and more via the new Team API. Perfect for integrating Lettermint into your existing workflows and systems.

Request access
October 29, 2025 at 2:03 PM
𝙆𝙣𝙤𝙬𝙡𝙚𝙙𝙜𝙚 𝙏𝙝𝙪𝙧𝙨𝙙𝙖𝙮 📚

Email subdomain: yes or no?

If your newsletter gets spam complaints, it can hurt your password resets too. Without subdomains, one bad campaign affects everything.

Email subdomains fix this:
- mail.yourdomain.com for transactional
- newsletter.yourdomain.com for marketing
October 23, 2025 at 10:04 AM
𝑳𝒂𝒖𝒏𝒄𝒉𝒊𝒏𝒈 𝑰𝒏𝒃𝒐𝒖𝒏𝒅 𝑬𝒎𝒂𝒊𝒍𝒔 📨

Receive and process incoming emails as webhooks. Perfect for building support systems, contact forms, and email automation workflows.

Learn how inbound emails work!
October 14, 2025 at 11:51 AM
𝙆𝙣𝙤𝙬𝙡𝙚𝙙𝙜𝙚 𝘽𝙖𝙨𝙚 𝙏𝙝𝙪𝙧𝙨𝙙𝙖𝙮 📚

Greylisting is like a waiting room for unknown emails. Mail servers make new senders wait and retry: real senders come back, spammers don't.

The problem? Your password reset email gets delayed.
The solution? We knows the wait times and retries smartly.

Learn more
October 9, 2025 at 9:56 AM
𝗖𝗼𝗻𝘁𝗲𝗻𝘁-𝗜𝗗 (𝗖𝗜𝗗) 𝘀𝘂𝗽𝗽𝗼𝗿𝘁 𝗶𝘀 𝗻𝗼𝘄 𝗮𝘃𝗮𝗶𝗹𝗮𝗯𝗹𝗲! 🖼️

Embed inline images directly in your emails without external hosting. Perfect for logos, email signatures, and newsletters.

See how to use it
October 8, 2025 at 10:00 AM
𝙆𝙣𝙤𝙬𝙡𝙚𝙙𝙜𝙚 𝘽𝙖𝙨𝙚 𝙏𝙝𝙪𝙧𝙨𝙙𝙖𝙮 📚

DMARC is the security chief that checks both the guest list (SPF) and wax seal (DKIM). It decides what happens to suspicious emails.

No DMARC? Fake emails slip through.
With DMARC? You control your domain's reputation.

Test your DMARC policy with our free checker!
October 2, 2025 at 10:00 AM
𝙆𝙣𝙤𝙬𝙡𝙚𝙙𝙜𝙚 𝘽𝙖𝙨𝙚 𝙏𝙝𝙪𝙧𝙨𝙙𝙖𝙮 📚

DKIM is like a wax seal on your emails. It proves your message hasn't been tampered with during delivery.

No seal? Emails might be altered or spoofed.
With DKIM? Recipients know it's really from you.

Verify your DKIM signature with our free checker!
September 25, 2025 at 9:59 AM
𝑳𝒂𝒖𝒏𝒄𝒉𝒊𝒏𝒈 𝑺𝒑𝒂𝒎 𝑰𝒏𝒔𝒊𝒈𝒉𝒕𝒔 🚀

Ever wonder why emails land in spam? Now you'll know exactly why. Get spam scores for every email you send, see what triggers spam filters, and improve your delivery.

Your emails deserve the inbox.
September 22, 2025 at 10:04 AM
𝙆𝙣𝙤𝙬𝙡𝙚𝙙𝙜𝙚 𝘽𝙖𝙨𝙚 𝙏𝙝𝙪𝙧𝙨𝙙𝙖𝙮 📚

SPF is like a VIP guest list for your domain. It tells email bouncers: "These servers are with me!"

No guest list? Party crashers (spammers) pretend to be you.
With SPF? Your emails get the VIP treatment.

Check who's on your list with our free SPF checker!
September 18, 2025 at 10:04 AM
📮 New: Improved Suppressions Management
Managing blocked email addresses just got a whole lot easier.

→ Complete overview of all suppressions across projects
→ Filter by type, date, or email address
→ Remove addresses from blocklist with one click
→ Automatic checks before every send

👇
September 16, 2025 at 10:00 AM
Testing emails? Stop using your own inbox! ✋

Use our test email addresses for your test emails. They're free and don't count toward your monthly limit.

🟢 ok@testing.lettermint.co
🟠 softbounce@testing.lettermint.co
🔴 hardbounce@testing.lettermint.co
September 15, 2025 at 10:03 AM
Students: This One's for You! 🫵🎓

Building projects that need real email? Whether it's your portfolio site, side project, or that #startup idea you're launching from campus. Focus on your code, not email infrastructure.

Lettermint is FREE for students 👇
September 10, 2025 at 9:59 AM
𝗦𝘁𝗼𝗽 𝗕𝗲𝗶𝗻𝗴 𝗮 𝗚𝗿𝗮𝘆 𝗖𝗶𝗿𝗰𝗹𝗲 𝗶𝗻 𝗔𝗽𝗽𝗹𝗲 𝗠𝗮𝗶𝗹! 🔘✉️

Apple Branded Mail lets you show your actual logo on iPhone, iPad and Mac for FREE. Unlike BIMI, no expensive certificates needed.

Time to show your brand.
👇
September 8, 2025 at 10:00 AM
𝘛𝘩𝘪𝘴 𝘶𝘱𝘥𝘢𝘵𝘦 𝘪𝘴 𝘧𝘰𝘳 𝘢𝘭𝘭 𝘕𝘶𝘹𝘵𝘦𝘳𝘴! 💚

Our official Nuxt module is here! Send transactional and broadcast emails directly from your @nuxt.com app.

Get started in seconds:
npx nuxi module add lettermint
September 4, 2025 at 10:04 AM
𝐃𝐢𝐝 𝐲𝐨𝐮 𝐤𝐧𝐨𝐰 𝐰𝐞 𝐡𝐚𝐯𝐞 𝐚 𝐃𝐢𝐬𝐜𝐨𝐫𝐝 𝐬𝐞𝐫𝐯𝐞𝐫?
Ask questions, share feedback, and chat with other developers. And last but not least... get €10 credit for your Lettermint account! 👀💰
September 3, 2025 at 10:02 AM
Testing emails? Stop using your own inbox! 👀

We've got free test email addresses that won't hurt your domain reputation. Plus they don't count toward your monthly usage.

👇
September 1, 2025 at 10:01 AM
𝗨𝘀𝗲 𝘁𝗮𝗴𝘀 𝘁𝗼 𝗼𝗿𝗴𝗮𝗻𝗶𝘇𝗲 𝗲𝗺𝗮𝗶𝗹𝘀! 🏷️✉️

We now support tags! Categorize your transactional emails for a better overview and improved organization.

👇
August 27, 2025 at 1:54 PM
We're making our email speed public! ⚡️✉️

Our new Time to Inbox page shows real-time delivery speeds to Gmail, Yahoo, Outlook & more. Updated every 15 minutes.

See how fast your transactional emails arrive.
👇
August 25, 2025 at 8:33 AM
Real-time webhooks are here! 🪝

Get instant notifications when your transactional and broadcast emails are delivered, bounced, or marked as spam. Catch every email event directly in your application.

👇
August 21, 2025 at 9:00 AM
Send Campaigns and Newsletters with Lettermint Broadcast! 📣✉️
Safely and reliably deliver large volumes of emails through Lettermint’s #European infrastructure.

🔗 lettermint.co/changelog/m...
Send Campaigns and Newsletters with Lettermint Broadcast
In addition to transactional emails, you can now also send marketing campaigns and newsletters with Lettermint Broadcast. Our European infrastructure ensures your marketing emails are delivered quickly and securely to your customers and subscribers.
lettermint.co
August 18, 2025 at 12:31 PM
No, No, There's No Limit! 🎶
We've removed the daily limit on our Developer plan. Send up to 300 emails per month without any restrictions!

👇
August 13, 2025 at 7:15 PM