[Mailman-Users] Photos from Macs getting removed by list server

Peter Shute pshute at nuw.org.au
Mon Jan 22 21:56:14 EST 2018

I agree about html email, but it was always an uphill battle with Outlook being set to html format by default. With iPhones/iPads, there seems to not even be a choice. They seem to create plain text unless you add a photo, then they revert to html. Our list needs to allow photos, so we just have to try t deal with it.

Peter Shute

> -----Original Message-----
> From: Mailman-Users [mailto:mailman-users-
> bounces+pshute=nuw.org.au at python.org] On Behalf Of Lindsay Haisley
> Sent: Tuesday, 23 January 2018 1:37 PM
> To: mailman-users at python.org
> Subject: Re: [Mailman-Users] Photos from Macs getting removed by list
> server
> On Tue, 2018-01-23 at 02:10 +0000, Peter Shute wrote:
> > Thanks for all that. I googled collapse_alternatives, and I can see
> > from the colour of some of the results that I've looked this up
> > before.
> >
> > Given that Mac and (particularly) iPhone/iPad users are common, we
> > probably don't have an unusual problem. Maybe I should just ask the
> > list owner to try changing those two settings to see how it goes:
> > collapse_alternatives=No
> > convert_html_to_plaintext=No
> I've been preaching for years to people that using HTML-enhanced email is a
> questionable practice, and on a mailing list it's even worse.
> There is no established standard for this usage, and graphic attachments may
> or may not be handled, or handled as the sender expected. On a mailing list
> it's a pretty sure bet that at least _some_ subscribers won't be able to see
> what the sender intended, so SOP on the lists here is to just strip them off.
> An email with _only_ an HTML MIME part is identified as spam.
> Smart phones have complicated the issue since in my experience smart
> phone MUAs are fairly brain-dead.
> I tell my Mailman mailing list customers that spot color, font effects (bolding,
> italics, etc) and simple layout are probably fine, but the use of images, either
> embedded or attached, is dicey.
> It used to be that HTML-ized emails were up to 10 times the size of plain text
> emails, depending on the generating MUA. This is probably still true, but
> bandwidth and storage capacities around the Internet have risen over the
> years so that this isn't the problem it used to be.
> --
> Lindsay Haisley       | "The first casualty when
> FMP Computer Services |         war comes is truth."
> 512-259-1190          |
> http://www.fmp.com    |     -- Hiram W Johnson
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