SelectFolderAsync and GetFolderInfoAsync determine message counts by sending different commands with different responses, so different results could be retrieved if one of the commands produces wrong results with a particular IMAP server.
To determine what is actually going on, please create a debug log using Imap object's LogWriter property (as described at https://www.rebex.net/kb/logging/) showing the two commands, and either post it here or mail it to support@rebex.net for analysis.
To determine what is actually going on, please create a debug log using Imap object's LogWriter property (as described at https://www.rebex.net/kb/logging/) showing the two commands, and either post it here or mail it to support@rebex.net for analysis.