Guides

Mailbox transfer Copies every message from one mailbox to another, folders included. Mailbox backup Downloads a complete archive of your mailbox, folders and attachments included. Email deduplicator Spots duplicate messages and moves them to a dedicated folder. Nothing is deleted. Mailbox analyzer Analyzes your mailbox: size per folder, top senders, breakdown by year. mbox / EML import Imports a Google Takeout export or EML files into any mailbox. Mailbox cleaner Sorts messages by age, size or sender to lighten your mailbox. Mailbox slimming Saves the attachments of old messages into an archive, then removes them from the mailbox. The message text is kept. Attachment extractor Pulls every attachment from a mailbox into a single zip archive. Contact export Exports to CSV every address that wrote to you or that you contacted. One-off sync Copies into each mailbox the messages the other one is missing. Nothing is deleted. Merge & split Merges two mailboxes into one, or splits a mailbox by date or by folder. mbox / EML converter Converts your exports from mbox to EML, or from EML to mbox. Mailbox tester Checks your credentials. Lists your folders and their message counts. IMAP & SMTP settings Finds the servers and ports for your mail provider. Header analyzer Reads an email's headers: routing, SPF, DKIM, DMARC. Address checker Checks whether an email address exists. No email is sent. Blacklist test Checks whether your domain or IP is on known blacklists. EML & MSG viewer Opens an EML email file in your browser, no Outlook required. Explains what to do with an MSG. Signature generator Creates a clean HTML signature compatible with every mail client. Contacts & calendars Transfers address books and calendars between two CardDAV / CalDAV servers.