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Corion
<p>I would try with a mail sender and recipient that are not hotmail, and I would also try sending a plain text attachment.</p>
<p>If sending a plain text attachment works, then it is a problem with [doc://binmode] not being applied, somewhere along the chain.</p>
<p>If the problem goes away by not using Hotmail as the first SMTP server, or goes away by using a different recipient than Hotmail, then the problem is how Hotmail handles (this kind of) attachments.</p>
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