Sounds familiar

Posted Nov 19, 2024 21:51 UTC (Tue) by jasonjgw (subscriber, #52080)
In reply to: Sounds familiar by jkingweb
Parent article: Book review: Run Your Own Mail Server

Mine also comprises Postfix, Dovecot and Rspamd. I found the online test at internet.nl to be valuable in checking my SPF, DKIM, DMARC and TLSA records. Stalwart Mail Server seems interesting (and perhaps too new to be covered in the book), and I haven't examined it in enough detail to decide whether switching to it would be advantageous.

Sounds familiar

Posted Nov 19, 2024 21:58 UTC (Tue) by dskoll (subscriber, #1630) [Link] (1 responses)

I run (ugh) Sendmail on my MX host, but that's only because the commercial anti-spam software I spent 18 years of my life working on integrates with Sendmail.

It relays to my IMAP server, which is Postfix/Dovecot. If I were starting out again, I never would have picked Sendmail.

Sounds familiar

Posted Nov 20, 2024 15:45 UTC (Wed) by smoogen (subscriber, #97) [Link]

And thank you for that software.. I ran sendmail way too many years because it made it usable on the Internet in the 00's and early 10's.

Sounds familiar

Posted Nov 19, 2024 22:47 UTC (Tue) by jkingweb (subscriber, #113039) [Link] (7 responses)

A friend of mine recently switched from the same set-up as mine to Stalwart. I didn't hear too much gnashing of teeth from him, though he did have a bit of difficulty setting up DKIM signing, and he couldn't figure out JMAP (which is the only reason I'd be tempted to switch).

What I have satisfies me, though. It may be Frankenstein's monster, but it's already assembled and alive, which is the best kind of monster.

Sounds familiar

Posted Nov 20, 2024 0:05 UTC (Wed) by willy (subscriber, #9762) [Link] (6 responses)

Is JMAP a typo for IMAP or is this some protocol I'm not familiar with?

JMAP

Posted Nov 20, 2024 0:08 UTC (Wed) by corbet (editor, #1) [Link]

JMAP is a competing email protocol; you can never have enough of those, after all.

Sounds familiar

Posted Nov 20, 2024 0:33 UTC (Wed) by jkingweb (subscriber, #113039) [Link] (3 responses)

JMAP is a replacement for IMAP (and SMTP submission, and CalDAV/CardDAV, I think) which uses HTTP for transport and JSON for payload formatting. I haven't looked at it in too much detail, but it did go through the IETF standard track process, and was championed by FastMail. There are few servers and even fewer clients, though, so it remains a curiosity more than anything.

I think the selling point is that JMAP is easier for clients to implement than IMAP, but till such time as servers are common that's a rather illusory benefit.

JMAP is good, IMHO

Posted Nov 20, 2024 2:10 UTC (Wed) by CChittleborough (subscriber, #60775) [Link]

JMAP is not just championed by FastMail: they created it. Their webmail service uses it. (They also use and contribute to Cyrus; in a closely-related development, Cyrus supports JMAP.)

I read the RFCs a few years back. It seems to me to be a clever way to synchronize lists of lists between client and server over HTTP using JSON ... but I'm not an expert on this topic.

(Disclosure: I am a very satisfied customer of FastMail, and heartily recommend them to anyone who, like me, wants to never ever have to set up spam filtering again.)

Sounds familiar

Posted Nov 21, 2024 11:16 UTC (Thu) by jond (subscriber, #37669) [Link]

the aerc client (featured on LWN recently) supports JMAP, although I've not used it.

Sounds familiar

Posted Nov 22, 2024 1:38 UTC (Fri) by dilinger (subscriber, #2867) [Link]

A selling point of JMAP for me is the "over HTTP" bit. It's frustrating when you're at a coffee shop or a doctor's waiting room and their wifi is filtering various SMTP-related ports, so you can't actually send the email you just wrote. Same reason I want XMPP over HTTP..

Sounds familiar

Posted Nov 20, 2024 6:25 UTC (Wed) by zdzichu (subscriber, #17118) [Link]

It's a protocol we discussed here already: https://lwn.net/Articles/680057/