---
name: "Sisimai::Reason::Filtered"
section: "3pm"
platform: "linux"
package: "libsisimai-perl"
version: "5.3.0-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/Sisimai::Reason::Filtered"
---

# Sisimai::Reason::Filtered(3pm)

Bounce reason is "filtered" or not.

## NAME

Sisimai::Reason::Filtered - Bounce reason is "filtered" or not.

## SYNOPSIS

```
    use Sisimai::Reason::Filtered;
    print Sisimai::Reason::Filtered->match('550 5.1.2 User reject');   # 1
```

## DESCRIPTION

`"Sisimai::Reason::Filtered"` checks the bounce reason is `"filtered"` or not. This class is called only `"Sisimai::Reason"` class.

This is the error that an email has been rejected by a header content after SMTP `"DATA"` command. In Japanese cellular phones, the error will incur that the sender's email address or the domain is rejected by recipient's email configuration. Sisimai will set `"filtered"` to the reason of email bounce if the value of `"Status:"` field in the bounce email is `5.2.0` or `5.2.1`.

This error reason is almost the same as `"UserUnknown"`.

```
    ... while talking to mfsmax.ntt.example.ne.jp.:
    >>> DATA
    <<< 550 Unknown user kijitora@ntt.example.ne.jp
    554 5.0.0 Service unavailable
```

## CLASS METHODS

### "text()"

`text()` method returns the fixed string `"filtered"`.

```
    print Sisimai::Reason::Filtered->text;  # filtered
```

### "match(string)"

`match()` method returns `1` if the argument matched with patterns defined in this class.

```
    print Sisimai::Reason::Filtered->match('550 5.1.2 User reject');   # 1
```

### "true(Sisimai::Fact)"

`true()` method returns `1` if the bounce reason is `"filtered"`. The argument must be `"Sisimai::Fact"` object and this method is called only from Sisimai::Reason class.

## AUTHOR

azumakuniyuki

## COPYRIGHT

Copyright (C) 2014-2018,2020-2024 azumakuniyuki, All rights reserved.

## LICENSE

This software is distributed under The BSD 2-Clause License.