On Thu, May 24, 2018 14:40, James B. Byrne wrote:
>
> Starting this morning (2018-05-2) my Squirrelmail (SM) composed posts
> to a Listserv mailing list service are being bounced back with this:
>
. . .
> Does anyone have a clue as to what is happening and how it is
> resolved?
>
The temporary fix is to attach an empty or proforma content file to
the message and send. This causes the missing header to be created:
Content-Type: text/plain; charset="iso-8859-1"
--
*** e-Mail is NOT a SECURE channel ***
Do NOT transmit sensitive data via e-Mail
Do NOT open attachments nor follow links sent by e-Mail
James B. Byrne mailto:byrn...@harte-lyne.ca
Harte & Lyne Limited http://www.harte-lyne.ca
9 Brockley Drive vox: +1 905 561 1241
Hamilton, Ontario fax: +1 905 561 0757
Canada L8E 3C3
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