Toolbar mail icon vanishes or shows wrong count
Toolbar mail icon vanishes, turns grey, or shows the wrong unread count after updates, installs or layout changes.
Tier I · Proven The best-established problems.
9 public reports · first reported 3 November 2017 · last reported 6 February 2026
What's going wrong
The toolbar button for the WEB.DE MailCheck add-on sometimes disappears, turns grey, or shows an unread count that does not match the inbox.
AI-assisted: written with the help of AI from the reports. The idea report has the full summary.
In the idea report
- The full summary.
- The products the 9 reports are about, and how many came each month.
- Related problems.
No business has been found with this problem yet, so the report has no contacts. All sales are final — no refunds. Pricing.