On Sunday, 22 January 2023 23:04:43 GMT Michael wrote: > Or if your ISP offer a webmail front end to their server, it should be > easier to access the message with a browser.
Useful advice, Michael; thanks. When I eventually found the right search terms, I went straight to the answer I needed [1]. Meanwhile, I used webmail to delete the offending message. I hope the lesson has been learnt, but I'll be ready next time if not. :) 1. https://serverfault.com/questions/327416/changing-the-maximum-mail-size-in-postfix -- Regards, Peter.