Cannot assign requested address - connect (2)


  • Used Zammad version: 5.0
  • Used Zammad installation type: package
  • Operating system: Centos 8
  • Browser + version: Firefox 78.12.Oesr (64.bit)

Expected behavior:

  • Smooth setup of Microsoft email

Actual behavior:

A snapshot of the production.log right after trying to perform this operation (twice) is given below.

Steps to reproduce the behavior:

  • I follow the installation steps, but this step didn’t work.


Are you sure that the IPv6 setup of your host is working as expected?
Does pinging via IPv6 and general IPv6 communication work in both directions?

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