Question and response
Question
dig smtp-0af8da52ea047f22c.core1.sfdc-5pakla.mta.salesforce.com. A
Answer
smtp-0af8da52ea047f22c.core1.sfdc-5pakla.mta.salesforce.com. 300 A 18.135.187.34
Authority
sfdc-5pakla.mta.salesforce.com. 86400 NS dns01.salesforce.com.
sfdc-5pakla.mta.salesforce.com. 86400 NS dns02.salesforce.com.
sfdc-5pakla.mta.salesforce.com. 86400 NS dns03.salesforce.com.
sfdc-5pakla.mta.salesforce.com. 86400 NS dns04.salesforce.com.
sfdc-5pakla.mta.salesforce.com. 86400 NS dns05.salesforce.com.
sfdc-5pakla.mta.salesforce.com. 86400 NS dns06.salesforce.com.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0