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** Create a label in Gmail with all the data you want to backup / remove (for instance: Gmail 2016). | ** Create a label in Gmail with all the data you want to backup / remove (for instance: Gmail 2016). | ||
** Label all the necessary messages with this label (the before:2016/01/01 filter may be useful). | ** Label all the necessary messages with this label (the before:2016/01/01 filter may be useful). | ||
** Launch Thunderbird, add your Gmail account via IMAP. | ** Launch Thunderbird, add your Gmail account via IMAP. Get the previous backup files hosted in storage hard drives. | ||
** Select the created label, select all messages inside it and right click -> Get selected messages (so that Thunderbird downloads the actual content, not just the header). This will take a very long time. | ** Select the created label, select all messages inside it and right click -> Get selected messages (so that Thunderbird downloads the actual content, not just the header). This will take a very long time. | ||
** Put Thunderbird in offline mode (important). | ** Put Thunderbird in offline mode (important). | ||
** Create a local folder (named for instance Gmail 2016), then choose all the selected messages inside the label, and Use "Copy the messages" to copy them to the local folder (this will take a very long time). | ** Create a local folder (named for instance Gmail 2016), then choose all the selected messages inside the label, and Use "Copy the messages" to copy them to the local folder (this will take a very long time). It is recommended to also copy them to another folder containing all mails from Gmail. | ||
** Once this is done, you can also easily create a file backup (of several GBs) of this folder via the Import/Export tools (this is a Thunderbird plugin). | ** Once this is done, you can also easily create a file backup (of several GBs) of this folder via the Import/Export tools (this is a Thunderbird plugin). | ||
** At last, put all messages on the Gmail label to the Trash and empty the trash. | ** At last, put all messages on the Gmail label to the Trash and empty the trash. |
Revision as of 06:43, 23 November 2018
Gmail backup
- Follow this procedure:
- Create a label in Gmail with all the data you want to backup / remove (for instance: Gmail 2016).
- Label all the necessary messages with this label (the before:2016/01/01 filter may be useful).
- Launch Thunderbird, add your Gmail account via IMAP. Get the previous backup files hosted in storage hard drives.
- Select the created label, select all messages inside it and right click -> Get selected messages (so that Thunderbird downloads the actual content, not just the header). This will take a very long time.
- Put Thunderbird in offline mode (important).
- Create a local folder (named for instance Gmail 2016), then choose all the selected messages inside the label, and Use "Copy the messages" to copy them to the local folder (this will take a very long time). It is recommended to also copy them to another folder containing all mails from Gmail.
- Once this is done, you can also easily create a file backup (of several GBs) of this folder via the Import/Export tools (this is a Thunderbird plugin).
- At last, put all messages on the Gmail label to the Trash and empty the trash.
- Note that if you move the messages with Thunderbird (to a local folder), they won't be deleted on Gmail. By default Gmail archives them which just means the "Inbox" label is removed.
Directories on disk
- Thunderbird directories are on ~/.thunderbird/th3bio9j.default/ (th3bio9j is the proile ID). Local folders are on ~/.thunderbird/th3bio9j.default/Mail/Local Folders/.