After sending messages with an attachment (pictures), they are not in the sent folder

Problem

After sending messages with an attachment (pictures), they are not in the sent folder

Context

If the e-mail contains only text, it is displayed as sent in the sent folder, but when he wants to send photos, it cannot be seen in the sent folder, but the message itself reaches the recipient. This is problematic because you cannot see e-mails with attachments in the history of the conversation with the client.

Email Provider

Zenbox >> https://zenbox.pl/

Setup

Hyperbook
Windows 10 Education 19044
Intel Core i7 10870H 2.2GHz
16gb RAM
SSD Samsung 970 EVO 500gb
Nvidia GTX 1660Ti

  • OS and Version: Windows 10 Education 19044
    • Installation Method: installer from website
  • Mailspring Version: 1.9.2