I received on 2024-09-25 about a dozen messages from various senders in my Thunderbird mailer from the University of Calgary mail system, around 2 p.m. and at least 50 emails in about a 12-hour period starting on Sept. 19 at about 2 a.m. that had recognizable sender names and subject lines as well as time and date stamps, but were either replaced by text from emails sent years earlier or corrupted (encoded?) in some way. For example, the email below was supposed to be from "Physics and Astronomy general announcements" on 2014-09-25, 2:15 p.m. but note the date in the header. This corruption of new emails is happening at irregular intervals, and I would very much like to know why and how to stop it from occurring. It seems to me that there is replacement of the contents of new emails with old, possibly compacted, email contents, if that makes any sense. Emails read on my account at the University of Calgary webmail system shows no such corruption, so it appears to be a problem on my Thundermail mailer. Look I like to use Thunderbird as opposed to a clunky Microsoft system, so

any help would be appreciated.  Thanks for your attention.  

- Gene Milone encl.: "On 2024-09-25 2:15 p.m., Physics and Astronomy general announcements wrote: > --_004_a2e30ad69a88a96097bdb50ed206edaeucalgaryca_ > Content-Type: text/x-vcard; name="milone.vcf" > Content-Description: milone.vcf > Content-Disposition: attachment; filename="milone.vcf"; size=456; > creation-date="Wed, 10 Jul 2019 21:37:05 GMT"; > modification-date="Wed, 10 Jul 2019 21:37:05 GMT" > Content-ID: <6D8F7C2F6E8D294BB4BD7D7080C00767@CANPRD01.PROD.OUTLOOK.COM> > Content-Transfer-Encoding: base64 > > YmVnaW46dmNhcmQNCmZuOkRyLiBFLiBGLiAgTWlsb25lDQpuOk1pbG9uZTtEci4gRS4gRi4gDQpl > bWFpbDtpbnRlcm5ldDptaWxvbmVAdWNhbGdhcnkuY2ENCnRlbDt3b3JrOjQwMy0yMjAtNTQxMg0K > dGVsO2ZheDo0MDMtMjg5LTMzMzENCnZlcnNpb246Mi4xDQplbmQ6dmNhcmQNCg0K >