| Subject | English | Welsh |
| comp., MS | active mailbox | blwch post gweithredol (A mailbox that has been accessed at least once in the last 30 days) |
| comp., MS | active mailbox migration | mudo blwch post gweithredol (The stage during the e-mail migration when the migration service is actively provisioning new cloud-based mailboxes) |
| comp., MS | archive mailbox | blwch post archif (An alternate storage location in which to store historical messaging data, accessible online through Outlook 2010 or Outlook Web App) |
| comp., MS | discovery mailbox | blwch post darganfod (A special type of mailbox in which copies of the mailbox search results are stored) |
| comp., MS | equipment mailbox | blwch post offer (A type of resource mailbox that is assigned to a non-location-specific resource such as a laptop projector, microphone, or company car. Equipment mailboxes can be included as resources in meeting requests, providing a simple and efficient way to utilize resources for an organization) |
| comp., MS | mailbox audit log | log archwilio blwch post (A log that is generated for each mailbox that has mailbox audit logging enabled. Log entries are stored in the Audits subfolder of the audited mailbox Recoverable Items folder) |
| comp., MS | mailbox database | cronfa ddata blwch post (A database for storing mailboxes in Exchange Server. The mailbox database manages the data in mailboxes, tracks deleted messages and mailbox sizes, and assists in message transfers. A mailbox database is stored as an Exchange database (.edb) file) |
| comp., MS | mailbox plan | cynllun blwch post (A template that automatically populates multiple mailbox properties when a mailbox is created in the service. A mailbox plan also assigns default permissions to the corresponding user account) |
| comp., MS | mailbox search | chwiliad blwch post (One instance of a multi-mailbox search) |
| comp., MS | Mailbox server role | rôl gweinydd Blwch Post (An Exchange Server 2007 server role that provides e-mail storage and advanced scheduling services for Microsoft Office Outlook users. The Mailbox server role also includes public folders, which provide a foundation for workflow, document sharing, and other forms of collaboration) |
| comp., MS | mailbox user | defnyddiwr blwch post (A mail-enabled Active Directory user object that has mailbox attributes) |
| comp., MS | managed folder mailbox assistant | gwas blwch post ffolder a reolir (A Microsoft Exchange Mailbox Assistant that creates managed folders in users' mailboxes and applies managed content settings to them for messaging records management (MRM)) |
| comp., MS | managed folder mailbox policy | polisi blwch post ffolder a reolir (A logical grouping of managed folders. When a managed folder mailbox policy is applied to a user's mailbox, all the managed folders that are linked to the policy are deployed in a single operation, thereby making the deployment of messaging records management (MRM) easier) |
| comp., MS | Multi-Mailbox Search | Chwilio mewn Nifer o Flychau Post (A feature in Exchange 2010 and Outlook Live that enables users to search the mailboxes in their organization for e-mail and other message types that contain specific keywords. The results of a search are then copied to a mailbox that you have specified so that you can review, organize, and export the search results) |
| comp., MS | resource mailbox | blwch post adnoddau (A mailbox that represents conference rooms and company equipment. Resource mailboxes can be included as resources in meeting requests, providing a simple and efficient way to utilize resources for an organization. The user account that is associated with a resource mailbox is disabled) |
| comp., MS | room mailbox | blwch post ystafell (A type of resource mailbox that is assigned to a meeting location such as a conference room, auditorium, or training room. Room mailboxes can be included as resources in meeting requests, providing a simple and efficient way of organizing meetings for an organization) |
| comp., MS | site mailbox | blwch post safle (An Exchange mailbox that is associated with a SharePoint site, enabling users to access documents and email related to group projects through either Outlook or SharePoint) |