Metre2 Mail - free
Moving off an old email setup? Metre2 Mail imports .pst and .ost data files folder by folder, .mbox mailbox files, such as a Gmail export, and loose .eml files - into any folder of any account. Big archives are fine, nothing is imported twice, and it's free.
Sheet 01.pst · .ost · .mbox · .emlDuplicates skipped
Right-click a folder and choose Import email..., or use Settings > Accounts > Import email...
Pick a .pst or .ost file on its own - or one or more .mbox or .eml files, or a whole folder of .eml files. Close any program that has a .pst open first.
Mail reads the .pst and lists every folder with its count. Tick the ones you want; calendar items, contacts and tasks are left out and counted.
Import into matching folders makes a new folder, "Imported - file name", with your folders inside it - or import everything into one folder.
Progress shows as it goes, with Cancel. Close the window if you like: the import carries on, and a summary says what came in, what was skipped as a duplicate and what wasn't email.
Help: Importing and exporting has every option in detail.
Free in Metre2 Mail. No time limit, no ads, no account, and your mail never passes through our servers. Mail Pro is there when you want every account in one inbox, categories, AI drafts and unlimited rules.
Yes. Metre2 Mail reads .pst and .ost files itself, so you don't need the program that made them. It imports the email; calendar items, contacts, tasks and notes are counted but left out.
On an IMAP account it's copied to your mail server, so it's on your phone and webmail too. On a POP3 account it stays on this PC. In Microsoft 365 mode it arrives as received mail with its original dates.
Emails already in the folder are skipped, matched on their Message-ID, so you don't get copies.
Yes - original dates, read and unread, attachments and attached emails come across. Imported mail never runs rules or shows notifications.
Yes. Importing .pst, .ost, .mbox and .eml is free. Exporting to .mbox and .eml is part of Mail Pro.
It opens. The password on a .pst isn't encryption, so Metre2 Mail can read it.
Work and school mail through Microsoft Graph - even where IMAP is switched off.
Summaries free; reply drafts and translations with Pro - nothing leaves your PC.
Three free rules, and one right-click to make one. Unlimited with Pro.
Pin to the top with P, free. Colour-code with C in Mail Pro.
Blueprint paper in light, deep navy in dark - every email on clean paper.
Tracking pictures hidden, links cleaned, every email sandboxed, fakes flagged.
Metre2 Mail is free. Mail Pro is a one-off £9.99, with a free 7-day trial.
