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<div dir="ltr"><span>Good afternoon, all</span><br>
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<span>As a review for SMTP, here is an article talking about “What is SMTP? Advantages and disadvantages of an SMTP server.”</span></div>
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<div dir="ltr"><a href="https://blog.mailrelay.com/en/2017/04/25/what-is-smtp-advantages-and-disadvantages-of-an-smtp-server">https://blog.mailrelay.com/en/2017/04/25/what-is-smtp-advantages-and-disadvantages-of-an-smtp-server</a></div>
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<div dir="ltr">Best,</div>
<div dir="ltr">Nan Cui </div>
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