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Updated July 2026 · real, multi-region App Store reviews
Head-to-head

mail.com vs Microsoft Outlook

mail.com 4.7★ · Free to download 55
Winner Microsoft Outlook
Microsoft Outlook 4.8★ · Free to download 75

Microsoft Outlook is generally more reliable for core email functions and offers better integration, while mail.com struggles with performance and customer support.

Microsoft Outlook, despite some authentication and search issues, provides a more robust and integrated email experience for most users. Mail.com offers unique domain choices but is plagued by performance problems, account lockouts, and poor customer support.

Head to head

Features edge: Microsoft OutlookR1R2R8R9
mail.com Mail.com offers a variety of unique email domains, which users appreciate for personal branding and creativity R2R8. It also provides multiple email addresses for organization R1 and some users find its iOS app clean R8. However, it lacks a robust calendar feature in the app and its search function is described as limited and primitive R9. Some users also report issues with email deliverability and spam filtering .
Microsoft Outlook Microsoft Outlook is praised for its layout, flexibility, and adaptability , and its ability to keep users organized . It integrates well with other O365 applications and is useful for managing school schedules and notifications . However, users report issues with the search feature being slow or terrible and a lack of options after selecting all emails in search results . Some users also miss the ability to change email body formatting or subject lines .
Ease of Use edge: Microsoft OutlookR3R8R9R19
mail.com Mail.com is described by some as simple and easy to use R8. However, many users report the app is slow to load and open emails R3R9, and deleted emails often reappear R3. The interface is considered outdated , and some find it not particularly intuitive . Recent updates have made text smaller, impacting usability R19.
Microsoft Outlook Microsoft Outlook is generally considered user-friendly and easy to use . However, some users find it complicated and messy . The calendar view in recent updates has been criticized for not showing enough events at a glance . Copy/pasting within the app can be a nightmare , and the order of email dialogue can be hard to understand .
Reliability tieR1R6R7R9
mail.com Mail.com has significant reliability issues, with users frequently reporting being locked out of their accounts R1R7R10, sometimes for extended periods R10. The app is often slow R6R9, crashes constantly R16, and emails may not load or send properly . Some users experienced issues with the app not working after updates .
Microsoft Outlook Microsoft Outlook is generally seen as reliable by long-term users . However, it has significant authentication problems, often trapping users in loops with the Authenticator app R64R70R73. Users also report not receiving emails for months or experiencing delays in email delivery . The app can be glitchy on iOS and sometimes logs users out periodically .
Price/Value edge: mail.comR6R8R16R20
mail.com Mail.com is free to download and use R8R20, which many users appreciate. However, some features like routing emails to another client or using IMAP/forwarding require a paid subscription R16. Some paying users feel the service has declined and is no longer worth the cost R6.
Microsoft Outlook Microsoft Outlook is also free to download. However, users complain about being bombarded with ads, even at the top of their email lists R100R106, which detracts from the value of a free app. Some users pay a monthly fee to Microsoft but feel they don't get adequate support for issues like spam .
Support tieR4R6R22R34
mail.com Mail.com's customer support is a major pain point. Users report being ignored after requesting assistance R4, difficulty reaching anyone R34, and a lack of phone numbers or email for support R22. While some older reviews mention quick customer support, recent reviews indicate a significant decline R6.
Microsoft Outlook Microsoft Outlook users also report difficulties with support, particularly with no number to call for a real person to fix authentication issues R73. Users paying a monthly fee feel they don't get support for issues like excessive spam .
Pick mail.com if

you prioritize a wide selection of unique email domains and a free service, and are willing to tolerate potential performance issues and poor customer support R8R20.

Pick Microsoft Outlook if

you need a more integrated email experience, especially within the Microsoft ecosystem, and value a generally user-friendly interface, despite potential authentication and search frustrations .

Evidence note: Mail.com has a significantly smaller number of reviews compared to Microsoft Outlook, which may skew the perception of common issues. Both apps have a mix of positive and negative recent reviews, indicating ongoing challenges despite high lifetime ratings.

Frequently asked

Does mail.com offer unique email addresses?
Yes, mail.com offers a variety of unique domains to choose from, allowing users to be creative with their email selection R8R2.
Are there issues with logging into mail.com?
Yes, multiple users report being locked out of their mail.com accounts for no reason, sometimes for extended periods, and experiencing glitches that prevent login R1R7R10.
Does Microsoft Outlook have problems with its Authenticator app?
Yes, many Microsoft Outlook users report significant issues with the Authenticator app, often getting stuck in a loop where the app requires authentication through itself, making it impossible to log in R64R70R73.
Do either of these apps have ads?
Microsoft Outlook users complain about being subjected to ads at the very top of their email lists every time they open the app R100R106. Mail.com offers a Premium option to avoid annoying ads R47.

What reviewers actually said

Built only from these 120 real reviews (foreign ones translated). Superscripts jump to the quote here. Apple has no per-review links, so [ref] opens that app's reviews on the App Store.

  1. [R1] mail.com 1/5 · US Wow! WTF: I have been using this service for work for several years and started using it for my personal e-mails as well. I loved the multiple e-mail addresses, very handy for splitting e-mails of by groups. I use the office part as well. Loved It. So much so I have all my documents and info in there. Well, Come this past Monday I try to log in from the same phone I have been using since I star
  2. [R2] mail.com 5/5 · US Perfect Mail Management: This package allows you to manage your digital identity to a very granular level. Dig in and explore the potential.
  3. [R8] mail.com 5/5 · US Very good mail app.: This email client is fantastic. I haven't found another client that shows such a variety of domains to choose from, which gives a lot of freedom to be creative with your selection, which I appreciate. It offers all the functionality I need and the iOS app is super clean, which I love. I highly recommend this for anyone looking for a free email client that looks great and is ea
  4. [R9] mail.com 3/5 · US Needs. Revamp: The app is very slow to display the emails. Very limited and primitive search function. Quits if there is a large number of emails in the “deleted” folder. Overall, after so many years it needs revamping and improvements Maybe at that time worths the paid subscription.
  5. [R3] mail.com 3/5 · US Website is OK, app is horrible: Emails take forever to load forever to open and when you decide you don’t want an email you have to delete it like five times before it actually goes away. Deleted emails just keep coming right back.
  6. [R19] mail.com 1/5 · US Text Even Smaller in Latest Update: Whose “bright idea” was it at Mail.com to make the overall text of the app EVEN smaller than it already was?!? Now I can’t even use this app anymore!!! No one can read the tiny print of all the app features. Inboxes etc!
  7. [R6] mail.com 3/5 · US Its below average NOW: It used to be fast with very quick customer support. It has gotten slower over time even with my fast fiber internet connection, if I need help it takes a long while for an answer. For a service I am paying for I expected different so I am looking for other options next year . I gave it 3 stars because it doesn’t have any spam issues which why I chose it for!
  8. [R7] mail.com 1/5 · US Locked me out of account: I had very important emails and pictures on this app and for no reason I was blocked from using the account. All my important emails gone!
  9. [R16] mail.com 1/5 · US The least performant email client ever made: The same hardware that can run an 8B LLM, when utilized by this application, takes ~1-5 minutes to search for an email. The app is unresponsive, regularly crashes, and is overall terribly optimized. Routing emails to another client requires a paid subscription. Only use if you want a really cool @ handle (like @engineer), caveat emptor
  10. [R20] mail.com 5/5 · US Review: good app, reasonably priced (it's free!)
  11. [R4] mail.com 1/5 · US Good luck if anything goes wrong!: My email recently stopped working. Nothing happens when I hit Compose, Reply, or Forwards. I have run through every trouble shooting measure from the mail.com site and from Google and ChatGPT. It still doesn’t work. I’ve requested assistance from mail.com twice and twice ignored. Guess it’s time to go to gmail…
  12. [R22] mail.com 1/5 · US Terrible latley: When I first started using the service four years ago, if not longer, it was reliable. Now it is consistently getting hacked and I can’t even currently login due to an error message. There is no customer support on this no phone number no email nothing. Find a different provider so you don’t get screwed like I am now having to find a new email provider for my business after four y
  13. [R34] mail.com 1/5 · US Customer service: Could not reach anyone at your end to discuss my Oder. Still know nothing.
  14. [R10] mail.com 2/5 · US Locked out: Three times now they've had a glitch that won't allow you to log in. It was all day today and still waiting.
  15. [R64] Microsoft Outlook 1/5 · US Authentication is atrocious: If you use this on mobile they make it impossible to authenticate on a single device, the app tries to authenticate on the authentication app via the authentication app. If you have a meeting to get to on mobile and you get signed out good luck. Also the outlook sign in solution also failed. This process all around is a failure.
  16. [R70] Microsoft Outlook 2/5 · US Richest poor software in the world: The application functions just like any other email application with the added side effect that you will randomly not be able to sign in due to their Authenticator app being complete and total garbage. It will trap you in an endless loop of needing to use the Authenticator app to authenticate that you’re using the Authenticator app so you can authenticate outloo
  17. [R73] Microsoft Outlook 1/5 · US Authenticator App wants to Authenticate Authenticator App through Authenticator App.: I can’t log into the Outlook app on my phone without it going through the Authenticator app. Authenticator app wants me to authenticate the Authenticator app login through my Authenticator app. I can’t use the same app to authenticate my ability to use the same app. Furthermore, there is no number I can call to
  18. [R47] mail.com 4/5 · US Excellent mail system: Mail.com is the most efficient mail system I have ever used! Because they offer the Premium option, the subscriber has the option of avoiding those annoying ads and I have never experienced most of the inconveniences friends have encountered.
  19. [R100] Microsoft Outlook 1/5 · US Ads??!!: As if we are not all bombarded with enough ads in our daily life and our inboxes… now we are subjected to ads at the very top of our email lists every single time we open our app!!??! Absolutely disgusting money grab tactics. Shameful.
  20. [R106] Microsoft Outlook 1/5 · US Ads in Email???: What’s next? Ads on you login in screen to your phone? No wait, embed a live link to an ad on every picture you take! That would be great. Seems like they keep cramming ads down your throat whether you want them or not.

Synthesized from 120 recent App Store reviews · updated July 2026 · View on the App Store