Starting this morning (2018-05-2) my Squirrelmail (SM) composed posts to a Listserv mailing list service are being bounced back with this: Reporting-MTA: dns;smtp.utc.edu Received-From-MTA: dns;NAM03-BY2-obe.outbound.protection.outlook.com Arrival-Date: Thu, 24 May 2018 09:16:56 -0400 Original-Recipient: rfc822;HP3000-L@xxxxxxxxxxxxx Final-Recipient: rfc822;HP3000-L@xxxxxxxxxxxxx Action: failed Status: 5.6.1 Diagnostic-Code: smtp;554 5.6.1 Body type not supported by Remote Host My transmission headers are these: <--- Thu, 24 May 2018 09:16:44 -0400 Message-ID: <09018cdf852417f57d1cd38d4aeabf8a> Date: Thu, 24 May 2018 09:16:44 -0400 Subject: Cognos powerhouse QTP QUIZ or QUICK string filtering From: "James B. Byrne" <byrnejb@xxxxxxxxxxxxx> To: HP3000-L@xxxxxxxxxxxxx Reply-To: byrnejb@xxxxxxxxxxxxx User-Agent: SquirrelMail/1.4.22-5.el6 MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Priority: 3 (Normal) Importance: Normal There are reports that Thunderbird (TB) users have encountered this problem and have resolved it by setting some TB option to strict mime. But I do not see anything equivalent in SM options settings. Does anyone have a clue as to what is happening and how it is resolved? -- *** 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:ByrneJB@xxxxxxxxxxxxx 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 ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot ----- squirrelmail-users mailing list Posting guidelines: http://squirrelmail.org/postingguidelines List address: squirrelmail-users@xxxxxxxxxxxxxxxxxxxxx List archives: http://news.gmane.org/gmane.mail.squirrelmail.user List info (subscribe/unsubscribe/change options): https://lists.sourceforge.net/lists/listinfo/squirrelmail-users