Toolbox Cloud E-mail

Integrate servus cloud to Thunderbird

There are Thunderbird add-ons you can use that utilize existing cloud accounts to integrate cloud functionality such as calendars and file attachment storage into your mail client.

Since add-ons often evolve quite quickly, we don’t want to give step-by-step instructions for individual add-ons here, but instead describe in general how you can use such extensions.

How to get it

To install add-ons, go to Tools Add-ons and use the search bar on the top.

Once you have the listed results you can click on the green + Add to Thunderbird button next to the listed add-on you prefer to install.

You can use the following information to connect your servus cloud account to add-ons or other applications:

Server URL
Usernamem_yourname (same as e-mail account username)
Passwordsupersecurepass (same as e-mail account password)
App token (instead of password) you can create an app token in your security settings:

Once you have your account connected, follow the instructions of the specific add-on you have installed.

Best Practice

For example, if you often send large file attachments via e-mail, it can be helpful to upload them to your cloud instead of sending them as e-mail attachments and send a link to the file via e-mail. You could do this manually, but it is cumbersome. With the help of an add-on, you can automate this procedure and specify the file size from which attachments are to be uploaded to the cloud.


If you are experiencing problems with receiving or sending emails in your email client (e.g. Thunderbird), please check the server settings again first, especially those of the outbox server. Here you can find the necessary information.

If problems still occur, this may be caused by installed antivirus programs or the firewall.
To check this, you can temporarily deactivate the antivirus program. If the sending process then works, the manufacturer can normally provide information on how to add exception rules for the email client.

The same procedure can be followed with the firewall. Here are the commands for the most common operating systems. If the firewall turns out to be the culprit, exception rules can be added to the firewall.

Ubuntu, Debian

sudo systemctl stop ufw

To see whether the firewall is active or not, use the following command.

sudo ufw status systemctl status firewalld

Fedora, CentOS

sudo systemctl stop firewalld

To see whether the firewall is active or not, use the following command.

sudo systemctl status firewalld

Windows: Official Windows Support

MacOS: Official Apple Support

If all e-mails have been deleted by mistake, a simple e-mail to is sufficient and we will restore your mail account.

By default every user is given 10 GB space. Of course if you really are in need of it on a regular basis, we will gladly raise the limit!

But please note that normally we kindly ask our members to reconsider how critical all the data they would like to keep on cloud is, before asking for an expansion. Also if it’s really necessary for their daily use for collaboration and important data.

As for the time being is not intended to be a data-storage solution for large archives, but rather for important documents and collaboration focused content for day-to-day workloads.

Even though we would love to offer unlimited storage to all our members, because of the limitations we have within the data center, it is not a sustainable or a realistic scenario for what we can currently offer.

You can drop an e-mail to and request an increase if necessary.

Sure, you can also communicate encrypted in the cloud webmail. For this you need the browser extension Mailvelope. Mailvelope is available for Firefox, Chrome (also for Vivaldi) and Edge. Besides the key management you have to make sure to add servus to the preconfigured e-mail providers. To send an encrypted reply, you don’t click on the blue “Reply” button at the very bottom as usual, but there is a transparent button in the middle of the message that triggers a pop-up window to send an encrypted or signed message.

No, we did not enable server-side encryption. And this is for three main reasons:

  1. It was still in an experimental phase until very recently.
  2. It requires more server-side processing power.
  3. It is possible for you to make use of end-to-end encryption using the new versions of the clients.

This way we can make sure that for the average user there is no extra layer of complexity. And in case of a recovery from a disaster scenario, there aren’t additional potential issues.

For users who require encryption because of sensitive information: we are currently testing out the new production ready end-to-end encryption feature. Once it is enabled we will update the documentation on how to set it up.
In the meantime you can use a solution like VeraCrypt in order to encrypt folders and only decrypt them locally on your device while only synchronizing encrypted data.

Yes, you can connect to the cloud service via WebDav in your file browser.

Type: SecureWebDAV(HTTPS)
Folder or path: /remote.php/webdav/

User details:
Username: m_name
Password: The password you use to retrieve your mail.

Or on the other hand you can install desktop clients that automatically synchronize a folder in your file system with Nextcloud. See

Yes. You must provide a folder with the appropriate sharing rights and send the link to the specific person or group. Read more here.

Probably your file is too big. If you are uploading via the web interface files must not be larger than 512 MB. Otherwise you can use the desktop client, which does not have any upload limits. To avoid errors while uploading, we also recommend using the desktop client when dealing with many or large files.

Multiple files are downloaded from the servus cloud in archive form as .zip (top right download button). Under Mac OSX and Windows (older than Windows 7) it can happen that these .zip files are not recognized correctly and cannot be unpacked. Only additional programs like 7-Zip can help. For OSX there is also keka which uses 7-Zip as a basis.

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Setting up servus cloud

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