Loading a Web page is more resource intensive than ever (see the HTTP Archive’s page size statistics), and loading all of those assets efficiently is difficult, because HTTP practically only allows one outstanding request per TCP connection.
In the past, browsers have used multiple TCP connections to issue parallel requests. However, there are limits to this; if too many connections are used, it’s both counter-productive (TCP congestion control is effectively negated, leading to congestion events that hurt performance and the network), and it’s fundamentally unfair (because browsers are taking more than their share of network resources).
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Code an HTML email, with a captivating layout and correctly visible on all email clients is everything but easy.After testing by my own and perusing on the internet and books I have outlined some guidelines to strictly follow if you need to write an email newsletter....