Eli5 why some emails take an hour to receive

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Needed my password reset on a website, called support and they said they sent a link and it can take an hour to arrive in my inbox. Isn’t that like a billion years in computer time? Why does it take so long?

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3 Answers

Anonymous 0 Comments

There are probably multiple systems that have to handle your request. The customer relationship management system that the support team uses might send your request to a different internal system that processes requests first-in-first-out.

Once the email is sent, it needs to sit on the outgoing server for its turn to leave (usually very, very fast, but not always), then your email server would have to acknowledge receipt and put it in your mailbox (also usually very fast, but not always).

Basically, it takes multiple systems to get that email to you and any one of them might be having a problem that delays your mail.

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