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Poste.io – Complete Mail Server

poste.io

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Re: Poste.io – Complete Mail Server

#211

Earlier quoted context omitted.

> Currently the best I have found is Postal.io, but its not really light. Have you tried Emailengine?

Doesn't seem to allow direct SMTP connections/ isn't actually opensource.

https://github.com/postalsys/emailengine

Seems open-source to me.

Re: Poste.io – Complete Mail Server

#212

Earlier quoted context omitted.

Doesn't seem to allow direct SMTP connections/ isn't actually opensource.

https://github.com/postalsys/emailengine Seems open-source to me.

Open source ≠ source available

https://opensource.com/resources/what-open-source

Re: Poste.io – Complete Mail Server

#213
post #188
post #159

Earlier quoted context omitted.

Email is showing its age, but are SPF, DKIM, DMARC really confusing?

I've had a company tell me the other day that you can't do DMARC without using their services. It's just too complex. Why is that - we don't run our own mail servers and we use Google mail for our organization. I'd think Google would do that?

If a company tells you that it must be true. /s

Sounds like a salesmen who doesn't understand DMARC himself was trying to sell it by labeling it too complex.

From a purely technological point of view DMARC isn't that complicated. It just specifies how to treat DKIM and SPF results (with a bit of rather simple configuration). SPF is basically a list of ip's you own published on your domain (if the email was sent by that ip, you vouch that it was sent by you) and DKIM signs the email with a private key and you publish your public key on your domain so everyone can verify that this email was signed by the domain owner. SPF might fail if your mail gets proxied (as now its a different sender ip that you didn't vouch for) and DKIM might fail if the mail got modified including headers (because the signature can only be verified for exactly the original headers+content). So if you're sending email for someone else it gets a bit tricky, but for your own emails it's certainly not "just too complex" and boils down to a few line long configuration file, a list of ip's and a private/public key pair for signing emails.

Re: Poste.io – Complete Mail Server

#214

Earlier quoted context omitted.

https://github.com/postalsys/emailengine Seems open-source to me.

Open source ≠ source available https://opensource.com/resources/what-open-source

You should've said that you want libre software instead. A custom license doesn't really make an open-source project just source-available, you're granted plenty of rights as an user to use that source. Source-available would be much more restrictive than this.

Re: Poste.io – Complete Mail Server

#215

Earlier quoted context omitted.

I’ve been in the Ethereum ecosystem for over six years. I’ve heard “there’s a lot of work being done on…” literally thousands of times. Yet outside of the crypto-sphere I’ve only met a handful of people who’s life would be impacted in the slightest if the entire thing disappeared. Ethereum is eight years old and debates about use cases, etc aside I think even someone towards the middle of the debate can readily ackno…

100% agree. Been in crypto for 12 years. I’ve held this view for the last 7 years. So much delusion in the space. So much “technological orgasms” with no grounding in real world business dynamics and economics.

Precisely. I follow because there is some interesting technical work being done. There is a lot being built but even after tons of time, effort, and resources (at least 10s of billions of dollars) the only thing that ever comes out of this work is another incredibly dense and nearly impossible to use "technological orgasm" with an extremely thin use case utilized only by (seemingly) the team that built it and a minuscule circle of hardcore enthusiasts.

MetaMask is by far the most popular wallet used for all things Ethereum and Web3. They touted "30 million" MAUs[0] during the peak (3/22) of the last crypto craze/bubble. Let's put that in perspective - there are an estimated 5.3 billion people on the internet. 30 million MAUs represents 0.06% of worldwide internet users. Facebook (which has been in rapid decline) has at least 2.6 billion MAUs. One social media platform vs an entire ecosystem (MetaMask can easily be characterized as the official onramp to Web3). Literally a half of a half of one percent of the TAM (internet users).

Want a (somehow) even bleaker picture? According to DappRadar the top 10 most popular Dapps[0] COMBINED have a lifetime total of 888k wallets (all numbers rounded up) that have ever interacted with the Dapp in any capacity. That's 0.00167% of worldwide internet users and I'm sure the MAUs for these Dapps are even more pathetic. Additionally, it's widely known that wallet != user (many users use multiple wallets and addresses). Looking at these Dapps none of them have any utility other than "DeFi" (swapping tokens around), play to earn games, and straight up gambling. To look at it another way, an absolute best case (impossible) scenario for MAUs of these apps worldwide is roughly the equivalent of the entire population of a small US city. Have you heard of Lee's Summit, Missouri (to pick one)? Yeah me neither and the same could be said for these Dapps.

All of the building in the crypto ecosystem is by crypto zealots for crypto zealots which the MetaMask and Dapp numbers show is an absurdly tiny (so small you can barely wrap your head around it) population. Crypto (other than gambling on exchanges) is an extremely obscure fringe religion.

[0] - https://decrypt.co/95039/metamask-consensys-30-million-users

[1] - https://dappradar.com/rankings

Re: Poste.io – Complete Mail Server

#216
post #213
post #188

Earlier quoted context omitted.

I've had a company tell me the other day that you can't do DMARC without using their services. It's just too complex. Why is that - we don't run our own mail servers and we use Google mail for our organization. I'd think Google would do that?

If a company tells you that it must be true. /s Sounds like a salesmen who doesn't understand DMARC himself was trying to sell it by labeling it too complex. From a purely technological point of view DMARC isn't that complicated. It just specifies how to treat DKIM and SPF results (with a bit of rather simple configuration). SPF is basically a list of ip's you own published on your domain (if the email was sent by th…

Yeah, I need to do more research on it, thanks for your advice. It seems like this must surely be possible to set up on our corporate Gmail admin account.

Re: Poste.io – Complete Mail Server

#217
post #23

Earlier quoted context omitted.

Having been a part-time postmaster for more than a decade by now, I fully agree, and would even go further: Ingress spam is pretty much a solved problem if you play your cards right. ChatGPT et al. might change that again - but the mechanisms you can deploy today are very effective against the current UBE landscape. The _real_ problem is reliably getting your 100% legit mail into your consenting recipients' inboxes.

I've been doing it for well over 20 years now. Ingress - out of the box rspamd is pretty decent and it is rather configurable. Egress - DNS (A,AAAA, PTR), (E)HELO, SPF, DKIM, DMARC. "IP Reputation". There are absolutely no shortcuts and yet most of the problems I diagnose regarding email delivery will find a missing PTR record or a miss-configured (or non configured) HELO. You cannot be lazy when it comes to email. S…

Sorry for naivety, what is HELO in this context? I've been running a mail server with the other aforementioned things set correctly and tested; I've been able to reliably deliver mail to all of the big senders for years now, albeit on a small scale.

Am I missing something not knowing what HELO is ??

Re: Poste.io – Complete Mail Server

#218

I think a focus on transactional email would be more rewarding, as landing in spam doesn't really matter(just tell the user to check their spam folder). Currently the best I have found is Postal.io, but its not really light.

If you're blacklisted, your email doesn't even end up in the spam folder.

Easier to catch than if you are landing in spam or not.

Re: Poste.io – Complete Mail Server

#219

Earlier quoted context omitted.

If the alternative is that your construction firm fails and you and everyone else are out of a job - well your email hosting choice is a weird hill to die on.

(the '/s' means 'sarcasm' and that wasn't the user you replied to)

Doh missed that, reading is hard!

Re: Poste.io – Complete Mail Server

#220

Earlier quoted context omitted.

Does this happen even if you move your client to Google Workspace/Office 365? Using one of those two should eliminate the problem. Was that your experience?

No. Workspace gave no apparent protection. Why/how would it?

Presumably most of the firms clients are themselves hosting email on Workspace or 365. And Google/MS might treat email originating from their own systems differently than inbound email originating elsewhere.

Also I'd expect all the firms competitors to be using Workspace or 365, so if using them gives no apparent protection, presumably they should be suffering from this as well?

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