When PGP Desktop 9.x is proxying Lotus Notes email traffic, one of the following Lotus Notes error messages might occur when a new memo is sent:
Operation stopped at your request: mail.box
Operation stopped by user: mail.box
If enabled, the PGP Desktop Messaging balloon might also appear and say: Error encountered when processing message See PGP Desktop messaging log for details. After clicking OK on the Lotus Notes error message, the memo then stays open on the screen and is not sent.
One possible cause for this issue is that PGP Desktop has not been configured to save passphrases. In order for PGP Desktop to automatically proxy and secure any email traffic (including that of Lotus Notes), passphrase saving must be enabled in PGP Options--even if passphrases are saved for just one second. If you are encountering the aforementioned error messages when attempting to send email with Lotus Notes, please follow the instructions below to possibly resolve the issue.
Configure the PGP Desktop option to save passphrases. Use the following steps to configure the PGP Desktop options for saving passphrases.