[Wolves] Fw: Nantwich Radio Rally 16th Feb in Nantwich Civic Hall ++Hack Green Nuke Bunker

[Adam Sweet]

Hi John

It looks like this and your Sun mail have fallen foul of the lug.org.uk
mailman content filters. I don't know if these are mailman defaults, set
as defaults by the lug.org.uk admins or by previous LUGmasters.

I see this mail made it through cleanly to Birmingham LUG, who also use
the lug.org.uk mailman server and I think I've found the setting which
broke the mail. Looking at the mail that made it through unbroken to
Birmigham LUG, the content type is set as:

Content-Type: multipart/alternative

Which means the mail contains more than one content type and the client
can choose which to display. Typically this is a plain text version
(Content-Type: text/plain), followed by the original HTML version
(Content-Type: text/html) or image/jpeg for the Sun mail.

Mailman has a setting which determines whether mail with the content
type multipart/alternative should be passed through as is, or stripped
down to just the first (text/plain). For us it was set to strip down to
just text/plain. I've disabled that now so multipart/alternative mails
should pass through as is.

I imagine this was set by a previous LUGmaster here, or is the default
and was been changed by the Birmingham LUG people. As you can probably
imagine, there have been numerous disputes over HTML content in the
past. The main argument against it was that some people still used
console based mail clients. I don't see that as relevant any more,
though my personal preference (and I expect most people here) is for
plain text mail on mailing lists, but I don't want to be puritanical to
the point of forbidding HTML mail.

As far as your Sun mail goes, generally speaking, binary attachments
shouldn't be included in mails to the list for numerous reasons, mainly
to do with resource usage when processing and sending the mail to tens
or hundreds of recipients on a busy list server where there may be mail
queuing and retries involved, as well as storage usage on the lug.org.uk
archive (it runs on contributed hardware). This is a common issue on
most busy list servers. Best practice is to upload the image or document
somewhere and post a link to it.

Regards,

Adam Sweet


On 06/02/2020 14:03, John Alexander via Wolves wrote:
>  Gotta say that a mail system that filters out links and images pritty much removes all information in 2020 GRR!!
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>     On Thursday, 6 February 2020, 13:48:56 GMT, John Alexander via Wolves <wolves at mailman.lug.org.uk> wrote:  
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>  Obviously more Radio orientated but full of Tools /Widgets/Computer stuff 
> I'm going in a now full car but ask around and tag along with someone already going!Home
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> Radioactive Fair 2016. Ham Radio, Electronics and Computers. Date is set for 2016! Sunday 14th February 2016....
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> For those who may fancy a trip down the Nuclear bunker may like the nearby "Hanger Sale" at the so called Secret Bunker 
> Sale is on the 5th of AprilHangar Sales - Hack Green Secret Nuclear Bunker
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