MailerSend

What's new at MailerSend

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Create your own WhatsApp templates
We've added the ability to create custom templates for WhatsApp from MailerSend. Now, in addition to the pre-approved template library and templates synced from Meta, you can also create your own templates as well. Get started with the template builder in the app; an API endpoint is coming soon for template creation via the API and MCP.
Isolated domain reputation: Keep the sending of every client, user, or brand separate
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If you send emails for several clients, brands, stores, or users, managing them under a single account is now easier and more reliable with individual domain reputation.

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WhatsApp API endpoints: messages, inbound messages and recipients
We've added endpoints so that you can list and look up your sent WhatsApp messages, inbound replies, and recipients through the API. Filter inbound messages by phone number, type, and date, and see per-recipient activity on each message.
Symfony integration now supports webhooks V2
If you send with Symfony's MailerSend bridge, it now understands our webhook V2 events. You can move to V2 without breaking your webhook handling.
Update templates without resending the whole body
You can now rename a template or change its tags, categories, or domain through the API or MCP without sending the full HTML and text again. The auto_generate option for plain text also works as documented.
Smoother MailerSend MCP experience
The MailerSend MCP is now more reliable and easier for AI assistants to use. We fixed validation errors, improved how it handles activity data, and added a skill that teaches assistants how to use it. What's more, the MCP can now tell you how far back your activity data goes, so it picks a valid date range the first time. That means fewer failed requests when you ask about past activity. And finally, you can check your API quota by asking how many API requests you have left and when your quota resets. It's handy before a big send or when you're working out why requests are being limited.
WhatsApp sending in the MailerSend MCP
You can now send WhatsApp template messages straight from Claude or any other MCP-connected client, no separate integration needed. It works the same way SMS sending already does, including support for personalized message content.
Unlock fast, global messaging: WhatsApp API has arrived
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WhatsApp has entered the chat. Today, we’re launching our WhatsApp Business API: bring rich, instant messaging into your transactional email and SMS strategy for better reach, higher engagement, and improved delivery workflows.

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The Hobby plan now includes 10 email templates
We've increased the number of templates on the Hobby plan from 3 to 10 to make the Hobby plan more usable for low-volume senders that need to send multiple types of transactional emails. If you're subscribed to a Hobby plan, you'll now be able to create and manage up to 10 templates on your account.
New 2048-bit dual CNAME keys for DKIM authentication
We now issue 2048-bit dual CNAME DKIM keys, replacing the 1024-bit single keys. The new keys are more difficult to decrypt, making them a more secure way to authenticate your emails. We've also introduced 2 keys instead of one, which allows us to rotate between the keys without downtime. All new domains will be issued the new keys, and we recommend that you migrate to these new DKIM records for your existing domains.
Payment via PayPal is now available
You can now pay for your MailerSend subscriptions and add-ons with your PayPal account. You can add PayPal as a payment method by going to the Billing tab on the Plan & billing page.
Stronger protection for SMTP credentials
We've tightened how SMTP credentials are handled behind the scenes. From now on, your password is shown to you only when it's first created. After that, it's stored securely and can't be retrieved or displayed again, giving your account an extra layer of protection.
Template translations are here: Translate with a click
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You can now translate your templates into 9 languages directly in MailerSend. Translate with a click: no manual creation needed, no duplicate templates to manage.

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New: Protect domain/IP reputation with Blocklist monitoring
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The latest addition to our collection of deliverability tools is now available. Blocklist monitoring automates the checks of your IPs or domains against blocklists so you can take action before any impact to your sender reputation.

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MailerSend CLI: Send emails and manage your account from the terminal
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When you’re already working in the terminal, switching contexts to manage other systems can feel like a drag. We get it, and we’re always looking for ways to reduce friction for the developers working with our platform.

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