# MailKit-mail filter

> IMAP mail client for automated email sorting and filtering. (iPhone/iPad app by Seimitsusakufu LLC.)

- Source: https://appshunter.io/ios/app/mailkit-mail-filter/id550777297 (this page in markdown: same URL + `.md`)
- Developer: [Seimitsusakufu LLC](https://appshunter.io/developer/459361672)
- Category: Utilities
- Price: $1.99
- Rating: 1.00/5 from 1 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.6 · 4 MB
- Languages: American English, Japanese
- Released: 2012-08-29
- Data updated: 2026-08-17
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/mailkit-mail-filter/id550777297/reviews.md

## What is MailKit?

■MailKit is a kind of mail app(The usage is explained at the  online help of the App). 
MailKit  can  move incoming mail messages to the  mailbox specified by rules.
MailKit has no mail sending facility and has only support for IMAP.
  
POP/SMS/MMS are not supported.


■How to connect to an IMAP mail server: 
To connect an IMAP mail server, 
just specify your full email address as your login name(username) and the password you log in to your account. 
If you don't know your login name/password, contact an organization or personnel in charge of the IMAP mail server to get a hostname, user id(name), password. 

■Basic operation: 
* Pull down to Refresh/Long Press to reload&spam filtering
* Push up to download older mails at the bottom of message lists
*Tap/Swipe to switch accounts
Tapping/Swiping the navigation bar of the Mailbox list switches the account if multiple accounts are available.
* Tap/Swipe to move around mailboxes (among 'Quick View List') 
* Move/Delete/Mark mail messages by the toolbar on the navigation bar 
* Tap/Swipe the navigation bar to turn over mail messages
* Add a mail to the blacklist by swiping
* Tap a Tab bar to  switch the rule view.
There are 4 views to show the rules for ‘Sender’, ’Subject’, ‘Message’, ‘Compound’.

■Mail Rules: 
There are 4 conditional fields for mail rules --- sender, subject, message, compound.
Mail rules are only applied for 'INBOX'.
To edit or create a mail rule, tap 'Edit' button on the Mailbox list. The selection menu appears, choose 'Rule'. Mail rules for ‘Sender’ will appear. 
Tap a Tab bar to switch a view.

■Support: 
To get a further support , contact through the following mail address. 
support_seimitsu@jcom.home.ne.jp

## Key features

- Automatic mail sorting via rules
- IMAP account support
- Customizable sender, subject, and message rules
- Swipe gestures for actions
- Pull-to-refresh and load older mails
- Blacklist functionality

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/mailkit-mail-filter/id550777297/reviews.md

### 1/5 — Didn’t work

*2018-07-31*

Deleted it 10 minutes after download and now I’m being charged for it. Did not work!!!!

### 1/5 — Does not work!

*2014-01-11*

Does not work with any of my four accounts! waste of money

## Frequently asked questions about MailKit

### What is MailKit?

MailKit is a mail application designed to automatically move incoming email messages to specific mailboxes based on user-defined rules. It focuses solely on filtering and organizing mail, without offering sending capabilities.

### How do I connect to an IMAP mail server with MailKit?

To connect, use your full email address as the login name and your account password. If you are unsure of your credentials or the server hostname, contact your IMAP mail server administrator.

### What types of mail accounts does MailKit support?

MailKit exclusively supports IMAP accounts for receiving and managing emails. It does not support POP, SMS, or MMS protocols.

### Can I create custom rules to filter my emails in MailKit?

Yes, MailKit allows you to create and edit mail rules based on sender, subject, message content, or a combination of these. These rules are applied to incoming mail in your INBOX.

### What gestures are available in MailKit for managing emails?

MailKit utilizes various gestures such as pull-down to refresh, push-up to load older mails, tap/swipe to switch accounts or mailboxes, and swipe to add emails to a blacklist.

### Does MailKit have ads?

No, MailKit does not contain advertisements. It is a paid application that provides an ad-free experience for managing your emails.

### What is the price of MailKit?

MailKit is available for a one-time purchase of $1.99. This price grants you access to all its features for managing your IMAP emails.

### On which devices can I use MailKit?

MailKit is compatible with both iPhone and iPad devices, running on iOS. It is suitable for users who need advanced email filtering on their mobile Apple devices.

## Version history (last 5 of 5)

### 1.7.0 — 2025-11-25

Corrections are made  to ensure compatibility with iOS 26.

### 1.6.9 — 2022-09-15

*Improvement & bug fix

1. Measures to cope with  iO16
    Bugs to be expected under iOS16 are fixed

2. iPhone notch support, until now the screen has been cut off in landscape mode.

### 1.6.8 — 2021-09-19

*Compatible with iOS15

*Bug fixes
1. Once it crashes, the app will not launch again.
2.When rule filtering is enabled, receiving mail might cause an infinite loop. 
3.Flag processing when receiving mail might not be handled correctly.
4. Some icons are not displayed in dark mode.
5. In mail search, if you enter a search string, delete the string, and then enter another string, the search result will be wrong.
6.When viewing a mail displayed by mail search, if the mail is an HTML mail with embedded external images, the mail will not be displayed correctly.

### 1.6.7 — 2021-03-31

Improvement
1.Improved error handling when account reconnection fails.

Bug fixes
1.  In some cases, fails to parse an email and crashes
2. Occasionally fails to display the subject of a mail
3. Occasionally crash on message download for multiple accounts.
4.  Other bugs

### 1.6.6 — 2020-09-22

* Some of snap shots in the online help are not latest.

Improvement
1. Measures to cope with  iO14


Bug fixes
1.  Snippets might not be displayed with some mails
2.  Fail to parse an email with a certain multipart form.

Others、the following features are suspended because of its instability.
1. Learning&Rule data sharing through iCloud
2. Section display in the mail list screen
3. Google OAuth2.0

## Apps similar to MailKit

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Echobell: Custom Alert & Call](https://appshunter.io/ios/app/echobell-custom-alert-and-call/id6743597198) | 4.7 (3) | Free | Utilities |
| [Tracker Detector](https://appshunter.io/ios/app/tracker-detector/id6738701716) | 5.0 (4) | $0.99 | Utilities |
| [Generate Password](https://appshunter.io/ios/app/generate-password/id6753186665) | — | Free | Utilities |
| [DeepCheck: The iPhone Report](https://appshunter.io/ios/app/deepcheck-the-iphone-report/id6752374036) | — | $4.99 | Utilities |
| [Password Manager - Keeper A](https://appshunter.io/ios/app/password-manager-keeper-a/id6756060160) | — | Free | Utilities |
| [Media File Format Converter](https://appshunter.io/ios/app/media-file-format-converter/id6479392266) | — | Free | Utilities |

## More apps by Seimitsusakufu LLC

- [MailCat](https://appshunter.io/ios/app/mailcat/id459361669)
- [SpamBlocker](https://appshunter.io/ios/app/spamblocker/id570617592)

All apps by Seimitsusakufu LLC: https://appshunter.io/developer/459361672

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-17.*