Use common icon names and "mail-" prefix: Bug #713454

icons/mail-outbox-symbolic.svg

@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Generator: Adobe Illustrator 15.1.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   version="1.1"
+   id="Layer_1"
+   x="0px"
+   y="0px"
+   width="100px"
+   height="100px"
+   viewBox="0 0 100 100"
+   enable-background="new 0 0 100 100"
+   xml:space="preserve"
+   inkscape:version="0.48.4 r9939"
+   sodipodi:docname="outbox-symbolic.svg"><metadata
+     id="metadata11"><rdf:RDF><cc:Work
+         rdf:about=""><dc:format>image/svg+xml</dc:format><dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" /><dc:title /></cc:Work></rdf:RDF></metadata><defs
+     id="defs9" /><sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1274"
+     inkscape:window-height="717"
+     id="namedview7"
+     showgrid="false"
+     inkscape:zoom="2.36"
+     inkscape:cx="-27.966102"
+     inkscape:cy="50"
+     inkscape:window-x="232"
+     inkscape:window-y="108"
+     inkscape:window-maximized="0"
+     inkscape:current-layer="Layer_1" /><path
+     style="fill:#bebebe;fill-opacity:1"
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+     style="fill:#bebebe;fill-opacity:1"
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+     id="polygon5" /></svg>