---
name: "Sisimai::Reason::NetworkError"
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::NetworkError"
---

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

Bounce reason is "networkerror" or not.

## NAME

Sisimai::Reason::NetworkError - Bounce reason is "networkerror" or not.

## SYNOPSIS

```
    use Sisimai::Reason::NetworkError;
    print Sisimai::Reason::NetworkError->match('554 5.4.6 Too many hops'); # 1
```

## DESCRIPTION

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

This is the error that the SMTP connection failed due to DNS look up failure or other network problems. This reason has added in Sisimai 4.1.12.

```
    A message is delayed for more than 10 minutes for the following
    list of recipients:
    kijitora@neko.example.jp: Network error on destination MXs
```

## CLASS METHODS

### "text()"

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

```
    print Sisimai::Reason::NetworkError->text;  # networkerror
```

### "match(string)"

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

```
    print Sisimai::Reason::NetworkError->match('5.3.5 System config error'); # 1
```

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

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

## AUTHOR

azumakuniyuki

## COPYRIGHT

Copyright (C) 2014-2018,2020-2022,2024 azumakuniyuki, All rights reserved.

## LICENSE

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