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Why can I use the ZopeTopia email server to send my email?

April 26, 2017email email server send zopetopia

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Why can I use the ZopeTopia email server to send my email?

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In a word: spam. Basically, if you want to send email you will have to use your ISP’s mail server for your outgoing email since they know who you are based on your IP address. Email servers that will send email for anyone are known as “open relays”. If they can find them, spammers will abuse open relays to send their spam for them, so much so that nowadays any email server acting as an open relay risks being put on “black hole lists” so that any email originating from that server is refused.