imapsync
MailStore
Gmvault
getmail6
OfflineIMAP
mnIMAPSync
FastMail
mbsync is a command line application which synchronizes mailboxes.

Sync and forward messages between Discord and Telegram automatically. Supports Discord-to-Discord and Telegram-to-Telegram forwarding too.

Which is more popular?
Based on our record, isync (mbsync) seems to be more popular. It has been mentioned 17 times since March 2021.
Website, pricing, platforms and company facts side by side.
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isync (mbsync)
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| Website | isync.sourceforge.io | forwardmsg.com |
| Pricing | — | |
| Company | — | Startup from the United States · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of isync (mbsync) yet.
ForwardMsg is a powerful message forwarding tool that automatically syncs messages between Discord and Telegram. Whether you need Discord-to-Telegram, Telegram-to-Discord, or even Discord-to-Discord and Telegram-to-Telegram message forwarding, ForwardMsg delivers real-time, reliable performance....
What each product offers, as listed by its team.

Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.

No analysis of isync (mbsync) yet.
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using isync (mbsync) and ForwardMsg. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

Instead of migrating from server to server — and remaining on computers I don’t own - I download locally which it looks this tool doesn’t do. I use mbsync/isync which is fast and reliable. https://isync.sourceforge.io/. - Source: Hacker News / over 1 year ago
There are also isync and OfflineIMAP which sync email locally. Source: over 3 years ago
I set up mbsync to mirror the current (last 90 days) of my Fastmail IMAP account into another local Maildir, and told Notmuch to index that as well. This ensures a Notmuch search will cover both current & archived messages. Source: over 3 years ago
Tracking ForwardMsg since Mar 2025.
When comparing isync (mbsync) and ForwardMsg, you can also consider the following products.

Console-based utility for migrating IMAP mailboxes.
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MailStore Home - A 100% free single-private-user desktop solution
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OfflineImap synchronizes email between an IMAP server and a MailDir or between two IMAP servers.
Compare OfflineIMAP to isync (mbsync) or ForwardMsg:

mnIMAPSync - Java IMAP email syncing tool
Compare mnIMAPSync to isync (mbsync) or ForwardMsg: