Patch for the built in Zimbra print feature, this reduces the number of pages to print by 50% (give or take) saving the environment. It does so, by not printing (broken) attachment thumbnails.
Bugs and feedback: https://github.com/Zimbra-Community/printpatch-zimlet/issues
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The below is ONLY for 8.6 version if you use a different Zimbra let me know, test before prod and all that, use for your own risk.
To install, first remove the patch zimlet (as root):
rm -Rf /opt/zimbra/zimlets-deployed/_dev/tk_barrydegraaff_printpatch
cp /opt/zimbra/jetty/webapps/zimbra/WEB-INF/tags/message/messagePrintView.tag /opt/zimbra/jetty/webapps/zimbra/WEB-INF/tags/message/messagePrintView.tag-orig
wget https://raw.githubusercontent.com/Zimbra-Community/printpatch-zimlet/master/messagePrintView.tag -O /opt/zimbra/jetty/webapps/zimbra/WEB-INF/tags/message/messagePrintView.tag
cp /opt/zimbra/jetty/webapps/zimbra/h/printmessage /opt/zimbra/jetty/webapps/zimbra/h/printmessage-orig
wget https://raw.githubusercontent.com/Zimbra-Community/printpatch-zimlet/master/printmessage -O /opt/zimbra/jetty/webapps/zimbra/h/printmessage
Then as zimbra: zmmailboxdctl restart
Related bug: https://bugzilla.zimbra.com/show_bug.cgi?id=95856
Thanks to Grupo Hoteles Globales for funds contributed http://www.hotelesglobales.com/