[pkg-php-pear] Undelivered Mail Returned to Sender

[Mail Delivery System]

This is the mail system at host web002.dmex.com.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                   The mail system

<skybergiron at gmail.com>: host gmail-smtp-in.l.google.com[108.177.112.26] said:
    550-5.7.25 [76.76.50.71] The IP address sending this message does not have
    a PTR 550-5.7.25 record setup. As a policy, Gmail does not accept messages
    from IPs 550-5.7.25 with missing PTR records. Please visit 550-5.7.25
    https://support.google.com/mail/answer/81126#authentication for more 550
    5.7.25 information. v12si456334jan.110 - gsmtp (in reply to end of DATA
    command)
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