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contact@inkscape.org: host smtp3.osuosl.org[2605:bc80:3010::136] said: 550 5.7.23 contact@inkscape.org: Recipient address rejected: Message rejected due to: SPF fail - not authorized. Please see http://www.openspf.net/Why?s=mfrom;id=webmaster@inkscape.org;ip=2a06:dd00:1:...<UNKNOWN> (in reply to RCPT TO command)