I checked my own domain yesterday.

Root TXT was just a Google site verification. No SPF. _dmarc returned NXDOMAIN, so no DMARC either. DKIM was already there.

I published SPF and a DMARC p=none today so I at least get reports.

Do mailbox providers still punish missing SPF or DMARC, or a policy that's just p=none? Is p=none worth having at all? What else do you usually check, MX, DKIM, BIMI?

I maintain a desktop mail client (MailVault, disclosure at the end). It already handled IMAP and Microsoft Graph, and I just shipped JMAP (RFC 8620/8621) alongside them. These are the protocol details that took real work, in case they’re useful to anyone else implementing it or running a JMAP server.

1. Autodiscovery is four lookups with a fixed priority, not one

All four run at the same time, each with a 4 second cap:

1. Known provider. The domain is Fastmail’s, or its MX record points at messagingengine.com, which catches Fastmail custom domains.
2. https://<domain>/.well-known/jmap
3. https://jmap.<domain>/.well-known/jmap
4. SRV _jmap._tcp.<domain>, then .well-known/jmap on the host it names.

The winner is picked by that priority, not by whichever answers first. Racing them keeps discovery under about 4 seconds, so it never holds up the IMAP lookup running next to it.

Two traps:

• A bare 401 proves nothing. Every Basic-auth-protected site on the internet answers with one. A probe only counts as JMAP when it gets a 200 whose JSON has apiUrl, or a 401 with WWW-Authenticate that it reached from /.well-known/jmap and whose final path looks like a JMAP endpoint.
• Keep the URL you landed on after redirects. If the client stores the starting .well-known URL instead, a client that only follows redirects on the same host refuses the very hop the user just approved.

2. Discovered hosts need a trust rule before credentials go out

No probe sends credentials. Credentials go without asking only to your own domain, a subdomain of it, or Fastmail’s API host for Fastmail addresses. For anything else, the user confirms the host, port included (jmap.example.com:8443), before the first authenticated request. Without that step, a hijacked DNS record becomes a password collector.

3. Push over EventSource needs a dead-stream detector

The client subscribes with types=Email,Mailbox&closeafter=no&ping=30. A stream that sends no bytes for twice the ping interval plus 5 seconds counts as dead and gets dropped. After repeated failures it falls back to polling, and it tries push again every 10 minutes. A session with no eventSourceUrl just polls. Half-open connections that never error out are the real problem, and the ping is the only way to see one.

4. cannotCalculateChanges must never touch the local copy

When Email/changes can’t compute changes from a stored state, the client rebuilds its header cache from the newest page of each mailbox and drops rows for mail that’s gone. It counts as a backfill: no “new mail” notifications, no local message file touched, and each message keeps its local ID. This matters most for an archiving client. A server-side state reset should never look like mass deletion or a flood of new mail.

Smaller fix from the same release: messages with no In-Reply-To or References (old “Fw:” mail, some webmail exports) were being threaded by subject alone. A two-year-old forward opened as the first message of an unrelated new thread. Subject-only threading now needs another message in the thread within 30 days, and picks the nearest one.

Question for server operators: which servers do you see publishing .well-known/jmap vs _jmap._tcp in the wild? I’ve tested Fastmail properly. I’d like to know which discovery paths actually get used before I spend more time on the others.

Disclosure: I’m the developer. MailVault is free, with an optional paid tier. No link here. Ask if you want it.

Hello everyone 🙏🏻🥺 hoping you could help me

I would need some IT participants to test my website.

I’m currently working on my capstone project for my Bachelor of Science in Information Technology (BSIT), and I’m looking for people who are willing to test my web application and provide feedback.
Introducing MimeSim: ARMED SMTP Simulator 🛡️
MimeSim is a web-based email security policy simulator designed to demonstrate how email security gateways evaluate incoming emails.

It allows users to simulate different email scenarios and understand why an email may be delivered, held, or rejected based on configured security policies.

Some of its features include:
Email authentication checks (SPF, DKIM, and DMARC)
Anti-spoofing and spam filtering
IP reputation and blocked sender checks
Content and https://mimesim.xo.jeattachment security checks
Policy bypass and exception testing
Diagnostic explanations showing how the final email verdict was determined

Please note: MimeSim is an educational simulation tool. It does not send real emails or perform actual malware scanning.

Who can participate?
Anyone interested in IT, networking, cybersecurity, or email security is welcome! You don’t need to be an expert to try it.
After testing, I would really appreciate it if you could answer a short evaluation survey. Your feedback will help me assess the system’s usability, functionality, and areas for improvement.

🌐 Website: https://mimesim.xo.je
user: admin
pass: Admin1234!

📝 Evaluation Form: https://docs.google.com/forms/d/e/1FAIpQLSch1_Jmg03OxAeUL6qzL5vPOHL4adp1MRu0dXj-46htRhSp4g/viewform

Thank you so much to anyone willing to spare a few minutes to help me complete my capstone project! ❤️
Your time and feedback would mean a lot! 🙏

I logged into a client's DNS registrar to add SPF (they email through Google) and I noticed a couple of weird entries.

CNAME fde._domainkey.[theirdomain].com. --> dkim. bm1lmh. fm72. fdske. com

CNAME fdesp.[theirdomain].com --> spf. bm1lmh. fm72. fdske. com

(spaces added to not add spammy links).

These are nasty, right? No third-party email software I know uses this weird server.

I've been looking at the cost of my Network Solutions services and I'm starting to wonder if I'm paying far more than I need to for email.

I only have one professional email address on my own domain and I don't need things like Teams, SharePoint or a whole business collaboration platform.

What matters to me is:

- Reliability

- Good spam filtering

- Strong phishing protection

- Easy account recovery

- Outlook compatibility

- Fair long-term pricing

So far I've looked at:

- Zoho Mail Lite

- Spacemail

- Fastmail

- Porkbun Email

- Purelymail

- Migadu

I'm interested in real-world experiences rather than feature lists.

If you were in my situation today, what would you look at, and what would you avoid?

Are there any providers that have impressed you (or disappointed you) when it comes to spam filtering, phishing protection, support or account recovery?

Thanks.

Guys, some of our customers having external domains, when sending mail to domains that have MX at Outlook, are not reaching recipients' inboxes nor Junk/Spam folder, and mails are not rejected either. Of course DKIM, SPF and DMARC are ok, and IP is not listed in RBLs as per MXToolbox and others as Proofpoint or Trendmicro. We do not admin Microsoft 365 accounts. We asked Microsoft support about this issue and they said several times, when we insist, they are not having delivery issues. Sending from those external domains to mail accounts at free Hotmail, mails are delivered to inboxes without issues and with DKIM, SPF and DMARC in status pass. Any idea will be welcomed

For clarification , it's a new server about two months old, and this issue started past week. Firsts days after server set up, mails was rejected at all even to Hotmail.com; contacted Microsoft support, they mitigated very fast and started to reach inboxes successfully. Plus I want to honor Microsoft's support people answer us always fast even when we insist many times about this issue. They said there are no issues from their side

FYI we do not permit massive mail sending. In this post I'm talking about just normal B2B mail. Our servers are limited to 200 mail/hour

EDIT: we are registered at SNDS and all our addresses are fine

Not sure if this goes against the guidelines, but I'm looking for a good email hosting service for persona email. I already have my domain and I'll need to have about 10 to 15 addresses. Not looking for free, just economical. TIA

Hi! I’m asking for advice, and I’ll use example domains for this question.

I already bought a domain through Porkbun for my art/brand name, which is my nickname plus my surname (dee-ashton.com, for example). I bought it in March 2026, only the .com, for 10 years. I use it for my website, and next year I plan to set up emails like [hi@dee-ashton.com](mailto:hi@dee-ashton.com), and maybe [staffname@dee-ashton.com](mailto:staffname@dee-ashton.com) if I hire staff to answer inquiries for me.

I’m asking now because .com prices are going up again in November, and I’m wondering if I should take the chance to buy another domain.

I’m considering a second domain using my full name, which is a slightly longer version of my nickname and surname (deanna-ashton.com). I’m not sure what I’d use it for yet, maybe government or very personal things like the bank or insurance.

Since I plan to move half of my business to Proton (or maybe another mail provider), I need to decide which domain to use as the email for registering on different accounts. As an artist, I have art platforms that need an email, and I also use things like Wise, PayPal, social media, Patreon, and Shopify, plus government, bank, insurance, and health accounts. I don’t know how to separate them between the two domains.

For example, my art brand domain is meant for art brand things, so for something like Patreon or Shopify, should I register it with the art/brand domain or with the other domain instead? Should dee-ashton.com be used only for answering questions and inquiries, or should it also be used for registrations like [patreon@dee-ashton.com](mailto:patreon@dee-ashton.com) or [shopify@dee-ashton.com](mailto:shopify@dee-ashton.com)? Or should I use [patreon@deanna-ashton.com](mailto:patreon@deanna-ashton.com) or [shopify@deanna-ashton.com](mailto:shopify@deanna-ashton.com)? In general, for any company, should it be [company@dee-ashton.com](mailto:company@dee-ashton.com) or [company@deanna-ashton.com](mailto:company@deanna-ashton.com)? Or, to be safe, should all registrations just go on deanna-ashton.com?

And in general, should I just use my art/brand domain for everything (like [bankname@dee-ashton.com](mailto:bankname@dee-ashton.com)), or keep things truly separate (like [bankname@deanna-ashton.com](mailto:bankname@deanna-ashton.com))? I live in a third world country, so even though I care a lot about privacy, I also have to think about basic practical needs. I don’t mean to bore you with the struggles, I just wanted to share this frustration.

I don’t know the pros, cons, or reasons for having one domain versus two, so I’d appreciate your advice. I want to use Proton (or another mail provider, if there’s a better fit) to send and receive emails from clients and government offices. There might be things I haven’t thought of, and it’s dawn here, so I’d appreciate any insight.

TL;DR: Should I use one custom domain for my brand, bank, government accounts, and everything else, or get a second one? And should dee-ashton.com be only for inquiries, with all registrations (Patreon, Shopify, and any other company@ address) going on deanna-ashton.com to be safe? Also, is Proton the right provider, or should I consider another one?

I need to setup 50 email ids for collage with custom domain , but I don't know how to do it and how much should I charge them for it.If anyone would appreciate the help.

just started email marketing service and trying to find clients...

if anyone here to collab or to work together then it would be great for both of us

What are you guys (if any) using for email forwarding in 2026? I tried the following options

- Cloudflare of course, email forwarding to gmail, emails landing in spam
- ImprovMXm same as above, landing in spam
- smtp2go, cannot verify mobile number says its "invalid" when its not duh.

So I've been testing Mailbox.org for weeks now and everything seems to work properly. I've been doing some testing in terms of emails landing in people's spam folder. I tested my account using EasyDmarc tools that allows you send an email from your own mailbox to 100 email addresses across a wide range of 3rd party email hosts. Easydmarc than reads those 100 mail addresses and checks if your mail enters or not.

Mailbox banned me for sending an email to 100 email addresses in one email. I've had to raise a ticket and wait for a full day to get an answer as to why no incoming mail was coming through. Mailbox purposely broke three of my most important email domains/aliases. Without warning of word upfront.

For people sending transactional email, customer notifications, or opt-in newsletters: what’s the one problem with your current sending platform you most wish they would fix?

Disclosure: I’m the CEO of MailChannels, so I’m asking from the provider side. I’d like to understand experiences outside our own customer base and use that feedback to inform what we work on. I’m not here to pitch our service.

I’m interested in a recent example rather than a general “provider X is terrible.” What were you trying to do, where did the platform get in the way, and what did you end up doing about it?

It doesn’t have to be a delivery problem. Something that regularly wastes your time or requires an annoying workaround counts too. A little context would help: what kind of email you send, roughly how much, and whether you’re sending for one business or managing email for multiple customers. No need to name the provider.

P.S. I checked with the mods before posting this. Thank you, mods.

Hi y’all,

Need to choose between Email Octopus and Mailerlite. I’m new to ESPs and I have a list of over 5,000 people I want to send emails to for a fundraising campaign. I signed up with Moosend at first, but during my warm up phase I got suspended due to too many bounces and emails going to spam (noting here that I verified DKIM, DMARC and SPF, and that I’ve cleaned up this list).

I’ve narrowed my search to Octopus and Mailerlite. Here are features that I’m looking for:

1. Analytics like who opened their email and whose went to spam
   
2. Emails going straight to the recipient’s inbox
   
3. Ability to personalize emails with the recipient’s name

Thank you!

In an energy sector if a customer is placing an order online , how important it is to send them an acknowledgement email . We currently send a disconnect at old property and a reconnect at new property message , my thoughts are we should be sending them an email explaining what would happen next , though there is a bit of resistance from the wider team suggesting that we might end up over communicating! Any suggestions , thoughts , ideas are most appreciated!

This could be a legal privacy issue. Anyone hear about this?

So I work for a team that manages a QSR brand (it’s a very famous burger brand but not the one you are thinking of) and we unfortunately need to use the designer on the client’s side.

I am really struggling on the design side cause first of all I am a strategist not a designer and no matter what I say, they just won’t create good emails like it’s beyond sad and they always say it’s not as per brand guidelines .

My only option now is to show they how the same brand is creating globally across markets. How do I access the emails from other markets? I tried signing up for various markets on the app but still won’t get them, I tried everything.

Only resort is for people to send them to me directly now but I ofc don’t know anyone globally and patient enough. Any ideas?

I run faivelo.com, and we are writing blog articles. We are looking to hear from the public: what are you building? What email-related pains have you experienced? Have you been trapped in a email provider's plan that doesn't work for you?

I may include the link to your site in the article and quote you by name if you would like.

I am currently bootstrapping a small side project on a paper-thin budget, so I really cannot justify dropping ​​​$​​​3​​​0​​​+​​​ ​​​a​​​ ​​​m​​​o​​​n​​​t​​​h​​​ on a p​​​r​​​e​​​m​​​i​​​u​​​m​​​ ​​​d​​​e​​​s​​​i​​​g​​​n​​​ ​​​s​​​u​​​b​​​s​​​c​​​r​​​i​​​p​​​t​​​i​​​o​​​n​​​ right now. My main problem is that almost every tool I’ve tried under a ​​​f​​​r​​​e​​​e​​​ ​​​t​​​i​​​e​​​r​​​ either locks ​​​H​​​T​​​M​​​L​​​ ​​​e​​​x​​​p​​​o​​​r​​​t​​​behind a ​​​p​​​a​​​y​​​w​​​a​​​l​​​l​​​, slaps massive ​​​b​​​r​​​a​​​n​​​d​​​e​​​d​​​ ​​​w​​​a​​​t​​​e​​​r​​​m​​​a​​​r​​​k​​​s​​​ all over the footer, or ​l​​​i​​​m​​​i​​​t​​​s​​​ ​​​y​​​o​​​u​​​ ​​​t​​​o​​​ just two basic layouts. I just need a flexible ​f​​​r​​​e​​​e​​​ ​​​e​​​m​​​a​​​i​​​l​​​ ​​​e​​​d​​​i​​​t​​​o​​​r​​​ that lets me build clean, responsive designs and actually use them without hitting a ​​​p​​​a​​​y​​​w​​​a​​​l​​​l​​​ every five minutes.

1. Which platforms have you found that offer a genuinely usable ​​​f​​​r​​​e​​​e​​​ ​​​t​​​i​​​e​​​r​​​ without aggressive ​f​​​e​​​a​​​t​​​u​​​r​​​e​​​ ​​​g​​​a​​​t​​​i​​​n​​​g​​​?

2. How do you usually handle exporting ​​​c​​​l​​​e​​​a​​​n​​​ ​​​c​​​o​​​d​​​e​​​ or ​​​t​​​e​​​m​​​p​​​l​​​a​​​t​​​e​​​s to your ​​​s​​​e​​​n​​​d​​​i​​​n​​​g​​​ ​​​p​​​l​​​a​​​t​​​f​​​o​​​r​​​m​​​ when working on a ​​​z​​​e​​​r​​​o​​​-​​​d​​​o​​​l​​​l​​​a​​​r​​​ ​​​b​​​u​​​d​​​g​​​e​​​t​​​?

3. Are there any ​​​o​​​p​​​e​​​n​​​-​​​s​​​o​​​u​​​r​​​c​​​e​​​ or ​​​v​​​i​​​s​​​u​​​a​​​l​​​ ​​​d​​​e​​​s​​​i​​​g​​​n​​​ ​​​t​​​o​​​o​​​l​​​s​​​ that don't force their own branding onto your emails?

I run a modest but growing newsletter that has a few good things going for it: ultra-niche, an audience that is commercially tied to the content, 6,500 subs (likely max # of optimal subs is around 150K - people who fit the best criteria for highly engaged recipients. I run it via Listmonk/SES/Digital Ocean. I'm having a frustrating time with bots. KPI's routinely show 45-50% open rates. CTRs are deeply flawed with 50% CTRs (yet then go back down to 5-6% on other days). However, bounce rates are very low - my recent daily send had 4 bounces out of 6,500 subs. I'd like to begin discussions with prospective sponsors but I have no idea how I would say "Hey sorry for these wild numbers, they're bots..." How do you guys determine value and performance metrics?

I'm 21 years old and am intrested in email marketing. I have taken multiple certifications for general understanding and am working on spec projects for my portfolio. With that being said...am I wasting my time? I have no experience in marketing, besides youtube university and HubSpot/Klaviyo courses. Will I actually be able to find clients by offering discounted prices, but with no real world experience? I'm honestly so scared to fail...