Hello ​@CorneliusReuter,

Thank you for reaching out, and welcome to the Docusign Community! We appreciate your question and assure you that we are fully committed to providing you with the best service possible. 
I’m sorry to hear that some of your users encountered problem logging in to their account and that your recipients did not receive email notification when the envelope was completed.

Users may try to do basic troubleshooting by following these steps:

To clear the cache and cookies in your browser, follow the instructions based on your specific browser:

Desktop browsers:

Chrome:
Click on the three-dot menu icon in the top-right corner.
Go to "More tools" and select "Clear browsing data".
Choose the time range and select "Cookies and other site data" and "Cached images and files."
Click on "Clear data."

Firefox:
Click on the three-line menu icon in the top-right corner.
Go to "Options" and select "Privacy & Security" from the left sidebar.
Scroll to the "Cookies and Site Data" section and click "Clear Data".
Check the boxes for "Cookies and Site Data" and "Cached Web Content".
Click on "Clear".

Also, you may check this relevant article Envelope Delivery, as to why your recipient did not receive email notification when the envelope is completed. These settings are used to set the envelope delivery options for recipients.

• Attach documents to completion email: When selected all the completed documents are included in the completed email sent to senders and signers as PDF file attachments. To include the Certificate of Completion along with the documents, you must also select the setting Attach certificate of completion to envelope.

  Note: If sending or requesting sensitive information such as PII data during the signing process, we recommend that you opt to not attach signed documents to the completion emails that get sent out to all recipients. We recommend that you consult with your legal and privacy team to determine the appropriate level of security for the account.

• Attach certificate of completion to envelope: When selected, when an envelope is downloaded as a Combined PDF, the Certificate of Completion is included at the end of the file. (The Certificate is always included with the Separate PDF download option.) If the setting Attach documents to completion email is also selected, the Certificate is included as a separate attachment to the completed email that is sent to senders and signers.
• Suppress emails to embedded signers: When selected, an email completion notice is not sent to embedded signers when envelope signing is completed. This option is only used with the embedded signing function and cannot be selected if the Send completion emails to embedded signers option is selected.
• Send completion emails to embedded signers: When selected, an email completion notice is sent to embedded signers when envelope signing is completed. This option is only used with the embedded signing function.
• Allow account users to decide if they should send a link or attach a PDF: When this option is selected, the Deliver self-signed email notifications by option can be set in user Permission Profiles and will override the account setting. It also allows Docusign mobile application users to set the email option used when sending from the application.
• Deliver self-signed email notifications by: This option selects the default account setting for how self-signed documents (documents sent using the Sign a Document option) are presented to the email recipients. This setting also affects self-signed documents sent from Docusign mobile applications. There are two possible selections:
  • Link: A secure link to the self-signed documents is included in the email. Email recipients select the link to navigate to the completed documents, where they can view and download the documents.
  • PDF: A PDF of the completed documents is attached to the email. Email recipients can view and download the attached documents.

If you found the response to be a useful solution to your question, please mark it as the best answer by clicking “Select as Best” to make it easier for other users to find. Thank you!

Best regards,

Ma. Cassandra | Docusign Community Moderator

"Select as Best" below if you find the answer a valid solution to your issue

Hello ​@CorneliusReuter,

I hope you are doing well. 

I want to confirm if you were able to solve your issue by utilizing the suggested solution or if the information provided was useful.

Let me know and I will gladly help you address the situation as soon as possible.

Best regards,
Ma. Cassandra | Docusign Community Moderator

"Select as Best" below if you find the answer a valid solution to your issue!