Users are unable to send encrypted messages to enternal recipients and messages in the mail queue of the PGP Universal Server display the message
Awaiting recipient key lookup.
The Mail Queue card lists email messages that are waiting to be sent by the Symantec Encryption Management Server (previously PGP Universal Server). The list is often empty, even on medium-load servers.
When mail messages remain queued on Symantec Encryption Management Server (SEMS), there are several reasons why an email message would appear on the list:
After you have determined and corrected the cause of the mail messages remaining in the Mail Queue, you can: