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Poste.io – Complete Mail Server

poste.io

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Re: Poste.io – Complete Mail Server

#31

Post by andix »

fullstop wrote: post #15
velcrovan wrote: post #2

First thought: oh, huh, a self-hosted CVE generator. In seriousness, installing Roundcube on my own server circa 2006 was the cause of the first and only time I’ve had a server hacked. It’s probably improved since then or it wouldn’t still be around, but it put me off ever hosting my own email. The risks only get worse the further away you get from personal/hobby use.

I've used https://mailu.io . It works well, but your biggest problem is going to be getting over the spam filter hurdles of the email giants of the world. Even if everything is properly configured (including dkim / spf / whatever else they've added) your messages will get plopped in the spam folder.

My experience is, that the „quality“ of the mail server‘s IP really matters. The worst experience I got was with digital ocean. A lot of providers just don’t accept email from their IP ranges. Some of them just completely block all DO IPs on router level, and refuse unblocking.

For my current server I had to switch IPs a few times, until I got one that was not blocked by any of the major providers. Unblocking a once blacklisted IP seems to be practically impossible.

And hotmail or outlook.com just mark a lot of email as spam. I see it now as a problem of the recipients. Office365 just accepts the same emails, it seems to be a strategy of the free mail providers, to give their non-paying customers a worse experience.

Re: Poste.io – Complete Mail Server

#33

Post by rspoerri »

layer8 wrote: post #28
user3939382 wrote: post #25

Earlier quoted context omitted.

> The _real_ problem is reliably getting your 100% legit mail into your consenting recipients' inboxes It's amazing that having someone in your address book isn't enough in many cases. Like, why?

Because the from address can be forged, probably.

from can be forged, but spf is there so only valid servers can send mail (or at least non valid can be filtered).

Re: Poste.io – Complete Mail Server

#34

Post by stevenjgarner »

c0l0 wrote: post #30
layer8 wrote: post #28

Earlier quoted context omitted.

Because the from address can be forged, probably.

Not really a problem in the age of DKIM, _if_ you want to solve it.

Even with DKIM, all you need is the recipient of one email from one user on one domain (I have hundreds of domains) of your mail server to file a spam report, and WHAM you are blacklisted. So yes, it is a problem even with DKIM. If you have a solution, I would LOVE to hear about it.

Re: Poste.io – Complete Mail Server

#35

Post by fullstop »

andix wrote: post #31
fullstop wrote: post #15

Earlier quoted context omitted.

I've used https://mailu.io . It works well, but your biggest problem is going to be getting over the spam filter hurdles of the email giants of the world. Even if everything is properly configured (including dkim / spf / whatever else they've added) your messages will get plopped in the spam folder.

My experience is, that the „quality“ of the mail server‘s IP really matters. The worst experience I got was with digital ocean. A lot of providers just don’t accept email from their IP ranges. Some of them just completely block all DO IPs on router level, and refuse unblocking. For my current server I had to switch IPs a few times, until I got one that was not blocked by any of the major providers. Unblocking a once…

We got a /24 at our data center and the reputation was, unfortunately, poor. I went through all of the public reputation lists and asked to be removed. It took about three months of incremental effort, but the reputation for the entire /24 is clean now.

This is with a "real" mail server, and not mailu.io, but the idea is the same.

Re: Poste.io – Complete Mail Server

#37

Post by andix »

fullstop wrote: post #35
andix wrote: post #31

Earlier quoted context omitted.

My experience is, that the „quality“ of the mail server‘s IP really matters. The worst experience I got was with digital ocean. A lot of providers just don’t accept email from their IP ranges. Some of them just completely block all DO IPs on router level, and refuse unblocking. For my current server I had to switch IPs a few times, until I got one that was not blocked by any of the major providers. Unblocking a once…

We got a /24 at our data center and the reputation was, unfortunately, poor. I went through all of the public reputation lists and asked to be removed. It took about three months of incremental effort, but the reputation for the entire /24 is clean now. This is with a "real" mail server, and not mailu.io, but the idea is the same.

I just went to my cloud provider of my choosing and started to add floating IPs. After a few tries I got a good one. I went through the unblocking process once, and I decided not to do it again. Especially Microsoft gave me a hard time, they started to request documents and then let me wait a few weeks until they replied: we don’t unblock, and we don’t tell you why.

Re: Poste.io – Complete Mail Server

#40

Post by andix »

richwater wrote: post #22
andix wrote: post #20

Earlier quoted context omitted.

No, that kind of software optimizes a very important problem. It’s quite cumbersome to set up all components of a mail server by yourself. At some point you start hosting a domain for a friend. Then then friend wants to create some mailboxes, forwardings and so on by themselves. So you just give them SSH and tell them to edit the postfix config? Having a web interface that does it all and doesn’t break things is very…

Who does this...?

Giving out free email addresses to friends and family? Me.

Hey, we are starting this charity and need email for 15 people, what should we do? - order domain, create admin-account in the web interface, pass it on, done.

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