while true; do j=`dig < hostname > @W.X.Y.Z +short`; if [ "$j" != "1.2.3.4" ]; then echo nodig |mail 8185551212@vtext.com; break; fi ; sleep 1m; done;This particular DNS server was only responding intermittently, so it needed some closer watching
# dig txt fordodone.com @4.2.2.2
;; ANSWER SECTION:
fordodone.com. 900 IN TXT "v=spf1 mx -all"
fordodone.com. 900 IN TXT "spf2.0/mfrom mx"
# dig txt mx._domainkey.fordodone.com
;; ANSWER SECTION:
mx._domainkey.fordodone.com. 3472 IN TXT "p=MIGfMA0GCSqGSIb3DQEBAJFHEBCY5DCBiQKBgQC1zZ4Mc7HiXNM0Cu3GZxwcI9vs4nIIcAIlzefnB9MbXrmQJF0m75BsKj8xer23oS7apleInob0RjneHbi+bwvEAa/NN7AjxTxla42dLoXOM+1B0Wf6taG3Vma/FS3bOdqWKo1J4hP8masXJ+PdkMy+LWqSp66fvJtG9U6/eQ4sJwIDAQAB\;"