imapsync - Console-based utility for migrating IMAP mailboxes.

QuickMail.io - Get more replies from prospects, eliminate manual work, and stand out from the competition with personalized, automated cold email that feels like a one-to-one message.

MailStore - MailStore Home - A 100% free single-private-user desktop solution

InboxAlly - We pull and keep your clients' emails out of the spam folder and promotions tab, and direct them into the primary inbox. We engage with your emails to teach mailbox providers not to send your email to the spam or the promotions folder.

audriga Email and Groupware migration - Easily migrate your email, contacts, calendar items and tasks to your new provider or server. No software installation is required.

FlowUp - AI-Enabled Omnichannel Automated Lead Follow-up System