0.0.9 Alpha: detect blocks by Google and Microsoft

Sam Tuke Oct 30 2020 Share

Lightmeter Control Center 0.0.9 introduces detection of mailserver blocking by large mail hosts like Google and Microsoft, and notification translations.

Please note this release is still in Alpha. Share your feedback using the link present on every application page.

The Web Interface of Lightmeter Control Center 0.0.9

Detect blocking by Google, Microsoft and others

Host-level blocking is a major problem for mailops professionals: for example Yahoo permanently blocking all mail from your mailserver without any given reason or warning. New mailservers are automatically blocked by default by many of the world’s largest inbox providers.

The newly added Insight automatically identifies these blocks for 7 different hosts so far, and optionally dispatches notifications via supported channels (currently: Slack). Host-blocks so far detected:

  • Google
  • Microsoft
  • Yahoo
  • AT&T
  • AOL
  • Mimecast
  • Tend Micro

Notification translations

As well as Control Center’s Web Interface being fully translatable, now all notification messages, such as those sent over Slack, are translatable as well.

The language is currently set automatically by the Control Center administrator’s web browser (determined by browser user preferences), and all strings are available in Lightmeter’s Weblate web-based translation tool.



  • New Insight: blocked by a remote host (host blocklist)
  • Translatable notifications (all channels)
  • New helper script: directly feed in individual log messages without a date

Fixes and tweaks

  • Translatable text now extracted from backend (Golang) files
  • Fix settings page button size on small screens
  • Fix gosec crash (test main.go is incomplete)
  • The full list of merge requests and commits is on GitLab.


Committers to this release are: Leandro Santiago, Marcel Franke, Suela Palushi, and Sam Tuke.


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Supported by

This release was funded through the NGI0 PET Fund, a fund established by NLnet with financial support from the European Commission’s Next Generation Internet programme, under the aegis of DG Communications Networks, Content and Technology under grant agreement No 825310.

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