MAIL KLERK
A well delivered e-mail impacts your business more than you think
A well delivered e-mail impacts your business more than you think
Ensure your bulk e-mails don’t end up in spam. With Mail Klerk, you get 98.64% deliverability!
Ensure your bulk e-mails don’t end up in spam. With Mail Klerk, you get 98.64% deliverability!


Pay only when you send
€0 monthly fee with unlimited contacts for free. For just €12, you can send 100,000 e-mails.
Up to 200,000 e-mails/hour
Automatically adapts to Google’s spam rules and prioritises sending notification e-mails first.
98.64% deliverability
Klerk ensures that the e-mails your customers need to read actually reach their inbox.
Easy to use
The intuitive editor looks like classic Word. You also have the option to insert custom HTML, images and variables.

Bulk e-mails end up in SPAM
With Mail Klerk, you can send more than 500 e-mails per hour without being blocked as a spammer. We guarantee 98.64% deliverability!

Invoices and orders don’t reach your customers
Separate transactional e-mails from regular newsletters to ensure your invoices don’t land in the Promotions tab, or worse, in SPAM.

Customers unsubscribe
from important e-mail
Unlike marketing tools, Mail Klerk allows you to hide the unsubscribe button in the footer, preventing customers from accidentally unsubscribing from order-related e-mails.

A large contact database costs you hundreds of euros elsewhere
Are you paying a flat fee for every stored contact in your tool? Mail Klerk keeps pricing simple: if you don’t send anything, you don’t pay anything.
Unlimited contacts
Store as many contacts as you want in Mail Klerk. You won’t pay a cent extra for your contact database.
Easy organisation
Sort your contacts into clear groups based on the types of e-mails you want to send them.
Keep your database clean
Export invalid and spam contacts to maintain a good reputation and ensure maximum deliverability. Unsubscribed contacts cannot be re-imported.
Import contacts quickly and easily
Upload contacts via CSV or simply paste them from your clipboard using ctrl+C, ctrl+V. Mail Klerk automatically removes duplicates.
Transactional e-mails and newsletters
Hide the unsubscribe footer in transactional e-mails to prevent customers from accidentally unsubscribing from invoice mailings.
Scheduling and testing
Schedule e-mails to be sent later. Send yourself a test e-mail first to see exactly how it will look when delivered.
Classic HTML editor
Create e-mails in a traditional HTML editor, upload images and banners and save templates to streamline future mailings.
Clear statistics
Track stats and gather insights for future e-mail campaigns. Mail Klerk shows the open rate and unsubscribe rate for every sent e-mail.
CMS integration
Connect Mail Klerk to your content management system via API and send e-mails directly from there. We support CMS platforms like WordPress, Joomla and more.
Form integration
Easily connect Mail Klerk to any form on your website. Collect new contacts through it and send automated responses effortlessly.
DKIM and SPF verification
Let Mail Klerk automatically check your DKIM and SPF records to ensure you truly maximise the deliverability.
Do you have your own e-mail tool?
Use only our mail server with a 98.64% deliverability rate and send e-mails through your own software.
Private IP addresses
Purchase additional IP addresses dedicated solely to your e-mails. This ensures maximum speed and reliability for your mail delivery.
Sending organisation
Prioritise transactional e-mails over newsletters and separate them from marketing messages for better efficiency.
Variables in e-mails
Add custom automatic variables (e.g. product names, discount codes) to your e-mails, which will be filled based on the contact information.
Service | Price per month * |
---|---|
1-300 sent e-mails | FREE |
301-100,000 sent e-mails | €17,99 |
Every additional 100,000 e-mails started | €11,99 |
Priority queue for transactional e-mails | €4,99 |
Custom IP address (min. 3) | €13,99 |
Variables in e-mail | €1,99 |
Sending statistics | FREE |
Phone support | FREE |
Statistics of delivered e-mail | FREE |
Technical domain setup (DNS, SPF, DKIM, DMARC) | €20 domain (one-time fee) |
Create an account in Mail Klerk and start sending
Register Mail Klerk, without any commitments. You only pay based on the number of e-mails sent. This means that if you don’t send anything, you don’t pay anything!

Create an account in Mail Klerk and start sending
Register Mail Klerk, without any commitments. You only pay based on the number of e-mails sent. This means that if you don’t send anything, you don’t pay anything!
Mail Klerk is an e-mail tool designed for convenient and easy bulk mailing. The main advantages of our service are its low cost, simple operation and an administrative environment in English or Czech.
Bulk e-mails are, as the name suggests, sent out all at once. Notification (status) e-mails are most commonly used for sending invoices, order confirmations, or to access passwords and similar messages.
The test mode is primarily intended for testing the functions. These are the same as in active mode, but:
- The test mode sends e-mails through a limited range of IP addresses to protect against spammers.
- It is also limited by the current queue of all other users in test mode.
- Therefore, the sending speed does not correspond to the speed available in active mode.
Yes, to end the test mode, please message us at info@webglobe.com.
Before sending your first e-mail through Mail Klerk, you need to do two important things:
- Fill in your contact and billing information
- Set up your DNS records for better deliverability
To fully utilise the Mail Klerk service, you need to assign a domain to your account. Simply log into the administration section under DKIM and SPF and enter it in the Add New Domains section.
You can upload contacts to Klerk as a file or simply by copying them from your computer using the keyboard shortcuts CTRL+C, CTRL+V.
Before sending your first e-mail, you need to upload your contacts and set up DKIM and SPF records for better e-mail deliverability. After that, you can create your first campaign in the editor.
Yes, you can use the Klerk SMTP server to send e-mails. You can find the setup instructions in our knowledge base.