[Fundacite] Undelivered Mail Returned to Sender

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                   The mail system

<amicaro65 en gmail.com>: host gmail-smtp-in.l.google.COM[74.125.141.26] said:
    550-5.7.25 [201.249.229.107] The IP address sending this message does not
    have a 550-5.7.25 PTR record setup, or the corresponding forward DNS entry
    does not 550-5.7.25 point to the sending IP. As a policy, Gmail does not
    accept messages 550-5.7.25 from IPs 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.
    s189-20020a675ec6000000b0034baaf7a6b2si1489462vsb.310 - gsmtp (in reply to
    end of DATA command)
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