Following user case: The plugin fails to connect once and an error sign is shown on the tray icon. Then on the next attempt the connection works (and if there is mail the symbol becomes yellow) but the error sign is still there. It would be much more intuitive if the tray icon would display the last connection state, i.e. no error sign if the last connection attempt was successful.
Another minor thingy which isn't worth opening a new bug report: The project URL in the About dialogue is outdated (should be http://spurint.org/projects/xfce4-mailwatch-plugin/ but is http://spuriousinterrupt.org/projects/mailwatch).
The error icon issue is already reported. Every other discussion will take place there.
Project URL is fixed.
Please, open new bug report for each different bug. I didn't know whether to close this report as duplicate or as closed. But because error icon issue is the major part of the report I am closing this as duplicate.
*** This bug has been marked as a duplicate of bug 4747 ***