You can use whatever mail server you like. Writercise is certainly not responsible for any unwanted mail you might receive through Yahoo or your mail server. My inbox is too full. Writercise archives are accessable to members only. A new writing prompt is sent to the list each Monday.
Late responses are certainly welcome.
If you send your exercise late, please be sure to include the original assignment date in the subject line, as well as the original prompt in the text of your post. These aren't updated automatically like the archives, so if it's early in the week, you may need to pay a visit to the archives. No, the list has been configured such that attachments will be automatically removed from all messages. You will need to copy and paste your exercises into your e-mail program, and send them as text. Please make your subject lines descriptive.