This might be of interest, though it probably won’t solve your
problem: [The Complete Guide to Email Client Rendering Differences in
2026](https://dev.to/aoifecarrigan/the-complete-guide-to-email-client-rendering-differences-in-2026-243f)
It covers email rendering issues with Gmail, Outlook, Apple Mail, and
Yahoo Mail. The audience is email senders/generators who want their
email to look good for as many recipients as possible. It helps explain
why it’s so difficult. I assume Benny is already familiar with most of
these quirks and that MailMate tries to avoid most of them in its HTML
output.
Outlook is particularly bad in this area. Different versions of
“Outlook”, and there are many versions, use completely different
rendering engines. Older desktop Outlook clients used Microsoft Word to
render, which is where the worst problems seem to originate. There’s a
lot of tweaks for conditional email formatting based on whether Outlook
is doing the rendering.
Newer desktop versions of Outlook, and the web-based versions
(Outlook.com), and the Mac OS version, all use modern web engines (a la
Chromium), so they see fewer issues.
Apparently, Microsoft is winding down support for the Word-based email
rendering this coming October.
On 25 Feb 2026, at 11:58, Jason Davies wrote:
Dear list,
This is going to be hard to describe because it is all about how
Mailmate renders text (I think)...
When I create a new paragraph in a Mailmate email I hit return twice.
I see a clear line between the paragraphs and it looks fine. This is
using Markdown, not plain text.
When people reply to me, their messages look fine too with healthy
paragraph spacing but my text below theirs (taken from my original
email) no longer has the extra white space. There are no gaps between
the paragraphs which makes it look very crowded. They are using
Outlook 99% of the time.
I can't be absolutely sure what they are seeing but if they are seeing
it without paragraphs, that's just nasty and probably horrible for
anyone with visual issues or dyslexia. If I open these messages in
Outlook, the white space is missing there too so I think Outlook is
compressing the paragraphs somehow for all readers.
Is there something I can do to ensure that the paragraphing has
persistent white space? Adding a third return key doesn't appear to do
anything to change this (I imagine this is typical md/html behaviour).
Any ideas very welcome.
Cheers,
Jason_______________________________________________
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Glenn P. Parker
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