---
name: "Sisimai::Reason::RequirePTR"
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::RequirePTR"
---

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

Bounce reason is "requireptr" or not.

## NAME

Sisimai::Reason::RequirePTR - Bounce reason is "requireptr" or not.

## SYNOPSIS

```
    use Sisimai::Reason::RequirePTR;
    print Sisimai::Reason::->match('The IP address sending this message does not have a PTR recor'); # 1
```

## DESCRIPTION

`"Sisimai::Reason::RequirePTR"` checks the bounce reason is `"requireptr"` or not. This class is called only from `"Sisimai::Reason"` class.

This is the error that the SMTP connection was rejected due to missing PTR record or having invalid PTR record at the source IP address used for the SMTP connection.

```
    host gmail-smtp-in.l.google.com[142.251.170.27] said:
    [192.0.2.25] The IP address sending this message does not have a PTR record setup, or the
    corresponding forward DNS entry does not point to the sending IP. As a policy, Gmail does
    not accept messages from IPs with missing PTR records. For more information, go to
    https://support.google.com/mail/answer/81126#ip-practices (in reply to end of DATA command)
```

## CLASS METHODS

### "text()"

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

```
    print Sisimai::Reason::RequirePTR->text;  # "requireptr"
```

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

```
    print Sisimai::Reason::RequirePTR->match('Reverse DNS failed');   # 1
```

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

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

## AUTHOR

azumakuniyuki

## COPYRIGHT

Copyright (C) 2024-2025 azumakuniyuki, All rights reserved.

## LICENSE

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