-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 On Fri, 2021-02-05 at 10:04 -0600, Lyle Giese via mailop wrote: > I just looked at the dns entries for foddi.net. The A and AAAA > records for mx1.mail.foddi.net has a TTL of 120 seconds. For many mail > providers that indicates a dynamic IP address. It's been my > experience that 12 hrs is minimum(some prefer 24 hrs) TTL's on these > records.
dig microsoft.com mx microsoft.com. 3600 IN MX 10 microsoft- com.mail.protection.outlook.com. dig microsoft-com.mail.protection.outlook.com. microsoft-com.mail.protection.outlook.com. 10 IN A 104.47.54.36 dig gmail.com mx gmail.com. 3600 IN MX 5 gmail-smtp-in.l.google.com. dig gmail-smtp-in.l.google.com. gmail-smtp-in.l.google.com. 300 IN A 74.125.137.26 dig yahoo.com mx yahoo.com. 1800 IN MX 1 mta5.am0.yahoodns.net. dig mta5.am0.yahoodns.net. mta5.am0.yahoodns.net. 60 IN A 67.195.204.72 ... -----BEGIN PGP SIGNATURE----- iHMEAREKADMWIQSuFMepaSkjWnTxQ5QvqPuaKVMWwQUCYCCv8xUcY2FybEBmaXZl LXRlbi1zZy5jb20ACgkQL6j7milTFsF3SwCdF768QhomPyZUdyLMPqDXlr3b/54A n2hf2hE4uZABBxZuYAOzFlplnhVQ =Ytwz -----END PGP SIGNATURE----- _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
