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Looking for my next project (programming.dev)

submitted 8 months ago by [email protected] to c/[email protected]

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Hey all,

I'm going to be moving on to my next project and have been thinking about doing an email client. I like Thunderbird, but the search is terrible, and I also want to tackle something that needs pretty high performance for processing emails etc.

Any suggestions or considerations I should think about?

I'll focus on just getting SMTP going in a CLI then I'll introduce some sort of frontend using Qt.

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[–] [email protected] 0 points 8 months ago (1 children)

Email is ridiculously complex—the technology is dead simple, but the number of exceptions and (undocumented) rules you need to abide by or risk getting banned by half the internet without being told is nothing to sneeze at.

I should know: I have built multiple support platforms that worked through email (amongst other channels).

You mention wanting to start at the SMTP level, and then building a Qt interface. So you’re going to write an SMTP client, an IMAP/POP3/JMAP client, a storage engine, a user interface, and a better search system, all on your own? You’re describing a gargantuan task.

No offense, but each one of those could be a project on its own. You probably think they’re all simple tasks (they’re not), and that you can follow a few RFCs to get things going (you can’t), and that it’ll be easy to debug (it won’t). Finally, I think you’re underestimating how large people’s email maps get.

Why not write a plugin for Thunderbird that improves the search?

[–] [email protected] 0 points 8 months ago* (last edited 8 months ago) (1 children)

No offense taken. But I've made no assumptions on the simplicity, and I know its a big task and want to start small. I don't mean to compete with Thunderbird, just I like it.

I think it would be a great exercise in learning the protocol and message handling.

[–] [email protected] 0 points 8 months ago

Okay, fairy nuff.

In that case, I would probably start with writing an SMTP or IMAP proxy first. It will teach you everything you need to know about the protocols, and you can reverse engineer the protocols using a client that already works.

It would give you a tangible project outline, which I believe is often critical to not lose motivation or interest.

If you accept using libraries, there’s the imap crate, the mail_send crate, and samotoo crate that are worth looking at.