Hotmail became an acute issue for me last weekend (I send out just one weekly newsletter, from [log in to unmask], so have rather a coarse-grained view of the problem). For the past month, a rising proportion of newsletters have bounced, all with the same error (but from varying Hotmail mail server IP addresses): > Connected to 65.54.254.140 but sender was rejected. > Remote host said: 554 Transaction failed Last Saturday this error occurred with 690 out of my 1200 subscribers on Hotmail. Hotmail support does not reply to messages. Failing any information on the cause of the problem or a possible solution, I have written to all my subscribers, suggesting they move to another system; many now have. Is there anything else useful I can do? Any advice would be very welcome. I approach wit's end ... -- Michael Quinion Editor, World Wide Words E-mail: <[log in to unmask]> Web: <http://www.worldwidewords.org/>