Domains with DNS TXT v=spf1 a:smtp.ptcnet.net a:mail.ptcnet.net a:smtp2.ptcnet.net a:smtp.piercetelephone.com ~all

There are 5 domains that have DNS TXT set to v=spf1 a:smtp.ptcnet.net a:mail.ptcnet.net a:smtp2.ptcnet.net a:smtp.piercetelephone.com ~all. The top 5 records ordered by domain rank are listed below.

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