[MacPorts] #53296: Installation of claws-mail port fails

[MacPorts]

#53296: Installation of claws-mail port fails
---------------------------+-------------------
  Reporter:  gith-account  |      Owner:
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.3.5
Resolution:                |   Keywords:
      Port:  claws-mail    |
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Comment (by jmroot):

 Any proxies configured in macports.conf, systems prefs, or environment
 variables?

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Ticket URL: <https://trac.macports.org/ticket/53296#comment:4>
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