1 is an invalid hostname.
chuck
** Changed in: postfix (Ubuntu)
Status: New = Won't Fix
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package postfix 2.7.0-1 failed to install/upgrade: subprocess installed
post-installation script returned error exit status 75
https://bugs.launchpad.net/bugs/590060
You received this bug
** Attachment added: AptOrdering.txt
http://launchpadlibrarian.net/49714914/AptOrdering.txt
** Attachment added: Dependencies.txt
http://launchpadlibrarian.net/49714915/Dependencies.txt
** Attachment added: Df.txt
http://launchpadlibrarian.net/49714916/Df.txt
** Attachment added: