Question and response
Question
dig letter.is. MX
Answer
letter.is. 3600 MX 20 mail-relay.letter.is.
letter.is. 3600 MX 10 mail.letter.is.
Authority
The response has no authority records.
Additional
mail-relay.letter.is. 3600 A 5.255.101.5
mail-relay.letter.is. 3600 AAAA 2a01:8740:1:5d4:0:0:0:5782
mail-relay.letter.is. 3600 A 185.245.83.98
mail-relay.letter.is. 3600 A 185.22.153.182
mail-relay.letter.is. 3600 AAAA 2a0a:8dc0:140:0:0:0:0:a
mail-relay.letter.is. 3600 A 82.118.235.144
mail-relay.letter.is. 3600 AAAA 2a03:94e0:ffff:185:14:97:0:125
mail-relay.letter.is. 3600 A 208.87.132.161
mail-relay.letter.is. 3600 AAAA 2001:df3:8880:48:0:0:8393:dc32
mail-relay.letter.is. 3600 A 185.14.97.125
mail.letter.is. 3600 A 103.255.134.34
mail-relay.letter.is. 3600 A 103.13.112.165
mail-relay.letter.is. 3600 A 74.91.16.188
mail-relay.letter.is. 3600 AAAA 2a01:4f8:1c0c:6cff:0:0:0:1
mail-relay.letter.is. 3600 AAAA 2602:ff16:5:0:1:40f:0:1
mail-relay.letter.is. 3600 AAAA 2602:fed2:fb0:37:0:0:0:1
mail-relay.letter.is. 3600 A 162.55.187.34
mail.letter.is. 3600 AAAA 2401:2960:3333:3330:0:0:0:34
mail-relay.letter.is. 3600 AAAA 2604:4300:a:17f:16:0:0:188
mail-relay.letter.is. 3600 A 23.154.81.68
mail-relay.letter.is. 3600 A 185.184.223.103
mail-relay.letter.is. 3600 AAAA 2a00:b700:0:0:0:0:7:84
mail-relay.letter.is. 3600 AAAA 2a04:52c0:106:7d84:0:0:0:1
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0