Wild guess: If Outlook changed your text-only default to HTML to match the item to which you replied, and your HTML mail format is set up (as many are, these days) to include a JPEG logo in the signature, you'd get this result. That's not necessarily the only scenario--just the one that first came to mind. I've pretty much given up on policing attachment types. I tried, years ago, but list users kept coming up with new, different file types (or new, different MIME encodings for the same old file types) and it ended up disrupting communications. I suspect any restriction on JPEGs these days is probably left over from the simpler, more straightforward days of yore--like five or six years ago. Hal Keen -------------------------------------------------- From: "Russell Hunt" <[log in to unmask]> Sent: Thursday, November 02, 2017 12:57 PM To: <[log in to unmask]> Subject: [LSTOWN-L] blocked attachments > This isn't actually a LISTSERV question, but it occurred to me that list > owners might have encountered this and have a solution. > > Twice recently I've replied to postings on a list I subscribe to and had > them rejected, with this error message. > > Your posting to the C18-L list has been rejected because it contains > an attachment of type 'IMAGE/JPEG'. The C18-L list has been > configured to reject such attachments. > > I've been inspecting the messages (or, anyway, the most recent one) and I > can't find any trace of an attached jpeg. I suspect that it's something to > do with my mail client, which is Outlook (not my choice), running off the > Web. It has the deplorable habit of attaching winmail.dat files to my > mail, or burying pdfs in such files, which are unopenable unless your > correspondent is also running Outlook. It also tends to pick up > characteristics of emails you're replying to -- so although I've set my > system to send text only, when I reply it seems to assume I want to > emulate whatever I'm replying to. > > However, the message I'm replying to can't very well have had an attached > jpeg, or the list would have bounced it. Anybody else run into this? It > strikes me as odd that I've not had any complaints about it from the lists > I own. Or maybe it's happening only to me, and something I could fix. > > -- Russ > > Russ Hunt > Professor Emeritus of English > St. Thomas University > http://www.stu.ca/~hunt > > ############################ > > To unsubscribe from the LSTOWN-L list: > write to: mailto:[log in to unmask] > or click the following link: > http://peach.ease.lsoft.com/scripts/wa-PEACH.exe?SUBED1=LSTOWN-L&A=1 ############################ To unsubscribe from the LSTOWN-L list: write to: mailto:[log in to unmask] or click the following link: http://peach.ease.lsoft.com/scripts/wa-PEACH.exe?SUBED1=LSTOWN-L&A=1