Perbaiki Tanggal Salinan IMAP Manual di Outlook

Many pengguna and administrator attempt to migrate emails between server emails by adding both IMAP accounts to Outlook and dragging or copying messages from one account to the other. This manual approach uses Outlook as an intermediary: Outlook downloads the email from the source server IMAP, then uploads it to the destination server IMAP using the IMAP APPEND command. Selama pengunggahan ini, server tujuan adds a new header Received with the current timestamp.

The manual IMAP copy approach has no mechanism for preserving the original INTERNALDATE. Tidak seperti dedicated migration tools (which at least attempt to set the INTERNALDATE during APPEND), Outlook's copy operation does not pass a date parameter to server tujuan. The destination server sets the INTERNALDATE to the waktu unggah, and adds its own header Received. Both date sources now reflect the copy date daripada the original tanggal diterima.

Users who perform manual IMAP copies often do so karena they believe it is the simplest approach, or karena they are moving a small number of emails. Namun, even a small manual copy can corrupt dates for hundreds of messages if an entire folder is selected. The kerusakan tanggal is not apparent until after the copy is complete, when the pengguna notices that all copied messages now show the copy date in Outlook's received kolom.

Setelah manual IMAP copy, Outlook menampilkan copy date for all transferred messages. The "Received" column shows when the message was copied, not when it was originally received. If the pengguna deleted the originals from server sumber, there is no way to see the tanggal yang benars in Outlook without fixing the headers.

The impact is identical to a migration tool-caused kerusakan tanggal: penyortiran, pencarianing, and filtering by date all operate on the copy timestamp. Outlook's berbasis tanggal groupings (Today, Yesterday, This Week, etc.) are disrupted. Tidak seperti migration tool scenarios that biasanya affect an entire kotak surat, manual IMAP copy kerusakan tanggal may affect a subset of kotak surat (only the folders or messages that were manually copied), creating an inconsistent mix of correctly-dated and incorrectly-dated messages within the same kotak surat.