
OfflineIMAP
MailStore
isync (mbsync)
Mail-in-a-box
Cloudiway
ImprovMX
IMAP Upload
Console-based utility for migrating IMAP mailboxes.

Which is more popular?
Apollo.io might be a bit more popular than imapsync. We know about 69 links to it since March 2021 and only 58 links to imapsync.
Website, pricing, platforms and company facts side by side.
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| Website | imapsync.lamiral.info | apollo.io |
| Pricing | ||
| Company | — | Startup from the United States |
| Listed in |
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.


Overall verdict
Why this product is good
Recommended for
Imapsync is recommended for system administrators, IT professionals, and anyone who needs to perform email migrations or backups. It is particularly beneficial for those working in environments that require the transfer of large quantities of emails, maintaining folder structure, and ensuring data integrity between different email services.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Migration Google Apps Mail or Gmail to Zimbra Mail with imapsync
Free software to find email addresses - apollo.io review
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using imapsync and Apollo.io. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


We have no reviews of imapsync yet. Be the first one to post
What is the best AI prospecting tool for B2B sales in 2026? The best tool depends on your team's specific situation. toflow.ai is a strong fit for multi-channel outreach across email, LinkedIn, and WhatsApp, and is...
We use Apollo with our Sales and BDR team to manage our cold outreach. The strength of the platform is the sequences and cadences that you can set up. Compared to other tools we have used in the past like Salesloft...
FAQWhat’s better than Apollo.io?What Apollo.io competitors are better for lead generation? What is Apollo.io used for?
Recommendations tracked on public social media and blogs since March 2021.


Apple's been a rock-solid email host for me. Imapsync (https://imapsync.lamiral.info/) made the migration very easy. https://blah.cloud/miscellaneous/migrating-google-workspaces-to-icloud-custom-domain/. - Source: Hacker News / 22 days ago
> I can't imagine how I would migrate to another email address Imapsync is your best friend for this. https://github.com/imapsync/imapsync https://imapsync.lamiral.info/. - Source: Hacker News / 7 months ago
I love imapsync: https://imapsync.lamiral.info This is the way projects used to be, and surprisingly excellent ones still are. The amount of knowledge built into this is incredible: https://imapsync.lamiral.info/S/news.shtml. - Source: Hacker News / 8 months ago
Personal email domains destroy this. Clearbit's Enrichment API returns a null company when it hits gmail.com. Apollo routes personal domains straight to a consumer bucket and skips B2B fields entirely. Even PDL's /person/enrich endpoint... - Source: dev.to / 4 months ago
A few things worth flagging: PDL beats Clearbit's historical rates for US and Western European companies, but drops to ~52% match rate for Japan and South Korea specifically. Apollo underperforms on raw company matching but returns... - Source: dev.to / 4 months ago
One thing comparison guides consistently get wrong: Clay is not an enrichment API. It's a waterfall orchestration tool that calls People Data Labs, Apollo, Clearbit, and others in sequence for you. It's useful, but it adds 2–8 seconds of... - Source: dev.to / 5 months ago
When comparing imapsync and Apollo.io, you can also consider the following products.

OfflineImap synchronizes email between an IMAP server and a MailDir or between two IMAP servers.
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ZoomInfo is a B2B database providing detailed business information on people and companies.
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MailStore Home - A 100% free single-private-user desktop solution
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mbsync is a command line application which synchronizes mailboxes.
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Find all the email addresses related to a domain
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