Gmail에서 GSMMO 마이그레이션 날짜 수정
GSMMO 마이그레이션이 Gmail에서 잘못된 날짜를 표시하는 이유
GSMMO (Google Workspace Migration for Microsoft Outlook) uploads emails from PST files or Outlook profiles directly to Gmail using the Gmail API. While the Gmail API technically supports setting a custom INTERNALDATE during message insertion, GSMMO's upload process results in Gmail recording the upload timestamp as the INTERNALDATE for most messages. The original Date 헤더 from the email is preserved, but the INTERNALDATE is overwritten.
In the Gmail 웹 인터페이스, this issue is partially hidden. Gmail web uses the Date 헤더 from the email body for its display date, so most emails appear with the 올바른 날짜 in the browser. 그러나, the IMAP INTERNALDATE stored on the server is wrong. This becomes visible when 사용자 access their Gmail account through any IMAP client (Outlook, Thunderbird, Apple Mail) or when third-party tools query 사서함 via IMAP.
GSMMO is 일반적으로 used by end 사용자 who are transitioning from Microsoft Outlook to Google Workspace. These 사용자 may not 즉시 notice the INTERNALDATE issue if they primarily use the Gmail 웹 인터페이스. The problem surfaces weeks or months later when they install an IMAP client, set up a 백업 tool, or when a 규정 준수 team runs a date-based search on 사서함 through Google Vault or IMAP-based archiving software.
Gmail에 미치는 영향
For Gmail web 사용자, the visual impact is minimal because the Date 헤더 displays correctly. 그러나, the corrupted INTERNALDATE affects several non-obvious areas. Gmail's IMAP SEARCH DATE command uses INTERNALDATE, so any IMAP-based tool or client that performs date searches against 사서함 gets incorrect results. Backup tools like MailStore, Veeam, or custom scripts that archive Gmail via IMAP record the 잘못된 날짜s in their 백업s.
Gmail's sorting within labels when accessed via IMAP uses the INTERNALDATE. Users who access their Gmail account from mobile IMAP clients or desktop email applications see an unsorted mess of emails all dated to the migration day. Google Takeout exports may also reference the INTERNALDATE for file naming or metadata, potentially creating confusing archives. The corrected Date 헤더 is inside the message, but the INTERNALDATE governs how external tools and IMAP clients perceive the message timeline.
자주 묻는 질문
If Gmail web shows the 올바른 날짜, why should I fix the INTERNALDATE?
The INTERNALDATE affects IMAP clients, 백업 tools, Google Vault 규정 준수 searches, and any third-party integration that connects via IMAP. Even if the Gmail web display is correct, the underlying data is wrong and can cause issues in 백업, 규정 준수, and multi-client environments.
How does Redate.io fix GSMMO dates in Gmail?
Redate.io reads the original Date 헤더 from each email, strips the GSMMO migration Received 헤더, and re-inserts the email with the correct INTERNALDATE matching the 원래 날짜. The original email is moved to a 백업 label for safety.
Will the fix change how emails appear in Gmail web?
아니요. Gmail web already shows the 올바른 날짜 (from the Date 헤더). The fix corrects the INTERNALDATE so that IMAP clients also display the 올바른 날짜. The Gmail web experience remains unchanged.