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General information

Once your shipping domain is verified and set up, your delivery rates will also automatically improve.

A bounce occurs when delivery to an e-mail address was not possible. The corresponding mail server informs our system that a mail could not be delivered. This feedback is called bounce. Bounces are divided into soft and hard bounces.

  • Ein Softbounce entsteht, wenn eine Mail wegen eines temporären Fehlers nicht zugestellt werden kann. Dies kann z. B. auftreten, wenn das angeschriebene Postfach voll ist oder der Server von diversen Mails überschwemmt wurde.
  • Ein Hardbounce entsteht, wenn die E-Mail nicht zugestellt werden kann, weil die E-Mail-Adresse nicht mehr existiert oder der empfangende E-Mail-Server die E-Mails blockiert.

Well maintained lists provide a better delivery rate and a lower bouncer rate. With unmaintained lists, you also spend money on email addresses that no longer exist. In addition, there is the possibility that one of the email addresses is a spamtrap, which blacklists the server and can reduce the delivery rate.

Tags can be used to automatically transform different tags in your templates into an individualized text. Tags are characterized by an opening and a closing part. For mailflatrate, this is the square bracket (opening part: “[“, closing part: “]”). For example, add the greeting with the following tag in your campaign a “Hello [FNAME]” to address each subscriber personally. For an overview of all available tags, please create a list and click on the list. The list overview will then be displayed. There you click on “Forms” and all available tags will be displayed.

A Block Email Request is a request from a subscriber to be blocked from receiving emails in the future.

The delivery rate of a campaign results from the total number of e-mails sent minus the bounce rate. Bounces are e-mails that could not be delivered (see: What is a bounce?). The following factors play a major role in the delivery rate of a campaign: The reputation of the sender measures the trustworthiness. If the reputation is high, the delivery rate is high.Whitelisting basically ensures that the reputation is rated more positively.Verify your shipping domain (see: How do I verify my shipping domain?).List maintenance: If you maintain your list regularly, the deliverability also increases. Non-existent email addresses (hardbounces) reduce the delivery rate of your campaign.Do not use purchased email addresses. Spam complaints have a negative effect on your reputation.Check regularly if your domains are on a blacklist (on the Internet you will find various free tools for checking).Check this checklist for better deliverability as well

Whitelisting aims to increase the quality and deliverability of e-mails by means of legal and technical standards. The quality standards result from applicable law and the technical requirements of ISPs (Internet Service Providers). The certification at CSA (Certified Senders Alliance) is subject to the obligation to adhere to certain standards. ISPs access CSA’s database. This ensures that e-mails sent via mailflatrate are better delivered and are not mistakenly marked as spam.

With the Domain Blacklist you can block certain domains for shipping. If you put example.com on the domain blacklist, then subscribers who use the provider example.com will not receive any e-mails from you.

You can blacklist email addresses to prevent their recipients from receiving emails from you.

The Suppression List is a special type of recipient list. There is only one per account, and it contains email addresses you don’t want to send to protect your reputation. Email addresses on the Suppression List cannot be accidentally imported or added to your regular subscriber lists.

There are a few points to be considered in the GDPR. For clarification purposes, the basic data protection regulation standardises data protection law within the EU, since different data protection laws and thus different standards have applied everywhere up to now. From now on, entrepreneurs can rely on the fact that a (predominantly) uniform data protection law applies within the EU.

Ein weiteres Ziel der DSGVO ist, dass das Datenschutzrecht datenschutzfreundlicher für die betroffenen Nutzer werden soll. Der Nutzer soll weitestgehend die Kontrolle über seine Daten haben. Grundsätzlich musst du daher auch immer die Zustimmung des Empfängers vor dem Versand von Mailings haben. Als Unternehmen musst du dafür sorgen, dass die Personen, deren Daten du erfasst und verarbeitest, stets umfassend über den Prozess der Datenverarbeitung bei Erhebung informiert werden. Dabei sollte eine verständliche, einfache und klare Sprache gewählt werden.


Go to “Email Templates” in the menu on the left. You will see the “Options” in the upper right corner. Click on the “Upload template” option to open a pop-up window. Simply select a file from your PC and confirm the upload with the button “Upload archive”. Give the template a name and confirm the changes with the button “Save changes”.

Go to “Lists” in the menu on the left. Select the list for which you want to create a form. Now click on “Forms” and the HTML code for the form will be displayed. You can add this code to your website.

The mailflatrate logo is displayed to all users who use the free package. To remove the logo from the footer, you need to subscribe.

At the moment you can’t create landingpages with mailflatrate. We are working hard to offer you this function as soon as possible.


To view your invoices, you need to log in with your account. In the navigation menu you will find the point “Orders” on the right under “My account”. There you can view your invoices as PDF, download them or send them to your e-mail address. After each order you will automatically receive an e-mail with the order information.


With us you can pay quickly and easily with PayPal. The use of the service is free of charge and there are no further fees for you.

  • Select PayPal as payment method when ordering
  • Connect your bank account with PayPal
  • Now you can pay your order with us with PayPal

Payment by credit card via Stripe

With Stripe you can make secure payments with your credit card. You don’t need a Stripe account to use the service, just a valid credit or debit card with a Visa or Mastercard logo.

  • Select Stripe as your payment method when ordering
  • Provide your data
  • Your credit card will be charged as soon as you complete the order

To ensure that your payment information is handled securely, we protect our website with SSL Certificates from one of the world’s leading providers of SSL Certificates. Depending on your browser, you can recognize the effectiveness of the certificates by the green address bar of your browser or by the lock symbol and the letter sequence “https”.

You can upgrade your booked package at any time. Just open the menu item “Upgrade“. There you can choose a new price package and start the order process by clicking on “Upgrade now“. If you want a custom package, you can always contact our support at support@mailflatrate.com.

A downgrade is possible, depending on the subscription, at the end of the month or at the end of the year. Simply choose a smaller package for the next month or year. Please note, however, that this also reduces the benefits, such as the number of subscribers. The downgrade will not take effect until the already paid month or year has expired.

In this case you should upgrade your price package. Just open the menu item “Upgrade“. There you can choose a new price package and start the order process by clicking on “Upgrade now“. If you want a custom package, you can always contact our support at support@mailflatrate.com. This makes sense especially for a large number of subscribers or agencies.

The monthly subscription of mailflatrate has a minimum duration of 30 days. It can be cancelled up to 24 hours before the end of the period. If there is no cancellation, the subscription will be extended by another month.

The annual subscription of mailflatrate has a minimum duration of 12 months. It can be cancelled up to one month before the end of the period. If there is no cancellation, the subscription will be extended for another year.

To cancel your subscription, go to “My account” in the top right menu. Click on the button “Cancel Plan” and confirm your cancellation again. We will then send you a cancellation confirmation with the expiration date of your subscription to your e-mail address.

To delete your account, you will find under “My account” the item “Deactivate account“. By clicking on the “Deactivate account” button, your account will be deactivated for 60 days for security reasons and then deleted. This ensures that you have access to your data after deactivation. The deactivation will be revoked as soon as you log back in with your account within 60 days.

Das sofortige Löschen deines Accounts kannst du schriftlich beantragen. Sende dazu einfach eine E-Mail an support@mailflatrate.com.


The domain or address cannot be removed per se, because the system automatically recognizes the list in which the subscriber is entered and the list is at mailflatrate. However, by verifying the shipping domain, you can ensure that your address or domain is displayed.

To verify your shipping domain, you will find under “My account” the item “Domains“. Click on “Create new “, fill in the fields and confirm the data by clicking on “Save changes “. In the following step, please insert the entries in the DNS settings of your hosting provider. Last go back to “Domains” in your maiflatrate account and verify the DNS entries.

(Bitte beachte, dass es bis zu 48 Stunden dauern kann, bis DNS-Änderungen übernommen werden.)

Unfortunately we cannot offer you an automatic A/B test yet. We are working very hard to make this feature available to you as soon as possible. However, there is currently an alternative method that you can use to perform an A/B test.

  1. Create a list with e.g. 1000 subscribers
  2. Walk to “Lists” in the left menu and to “Options
  3. ” in the upper right corner.

  4. click on “split lists” and select e.g. two lists of 500 recipients each
  5. Create two campaigns that differ in one or more variables
  6. Send one campaign to each of the two lists
  7. Compare the statistics of the two campaigns

Unfortunately, mailflatrate does not currently offer a Facebook plugin to generate e-mail subscribers. We are working hard to offer you this feature as soon as possible.

Select the desired list from the menu on the left under “Lists“. Then you will find under “Tools” the possibility to export the list. Click on “Export” and then on “CSV” to save the list as a CSV file.

Yes, the mailflatrate servers are on the whitelist. We are certified by CSA (Certified Senders Alliance) and can therefore promise you very good delivery rates.

Yes you can download our plugin here: wordpress.org/plugins/mailflatrate/

  1. Log in to your mailflatrate account: https://www.app.mailflatrate.com/customer/guest/index
  2. Click on the dot “API Keys”
  3. Copy Public-& Private-Key into the WordPress plugin and click “Save Changes”

The entries from the mailflatrate contact form will now be added to your selected list.

With most domain operators it is easily possible to enter our relatively long TXT entry or a 2048-bit key. However, there are still a few providers that only allow a shorter (up to 255 characters) TXT entry or a 1024-bit key.

Technically, it would be possible for us to switch to a 1024-bit key. However, we would like to do without the additional security (also in the interest of our customers). Therefore we ask for your understanding.

We recommend that you register a new domain with another domain provider for your newsletter mailing.

Any questions?

Call us: +49 2161 5735502

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