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Possibly greylisting, if it just happens to the first email sent froma &nbsp;unique IP. More here:<br />
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<a href="https://en.wikipedia.org/wiki/Greylisting" rel="ugc">https://en.wikipedia.org/wiki/Greylisting</a>
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Possibly greylisting, if it just happens to the first email sent froma  unique IP. More here:

https://en.wikipedia.org/wiki/Greylisting [https://en.wikipedia.org/wiki/Greylisting]

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I have Dropcam (now Nest) forward mail to three different email addresses. &nbsp;Often, one relay entity is very slow (just now, 111 minutes). &nbsp;This is usually &quot;yourhostingaccount.com.&quot; &nbsp;Why and what should I do about it?
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I have Dropcam (now Nest) forward mail to three different email addresses.  Often, one relay entity is very slow (just now, 111 minutes).  This is usually "yourhostingaccount.com."  Why and what should I do about it?

Why is yourhostingaccount.com so slow in relaying my mail?

Interactions between email servers and clients are governed by email protocols. The three most common email protocols are POP, IMAP and MAPI. Most email software operates under one of these (and many products support more than one).  The correct protocol must be selected, and correctly configured, if you want your email account to work.