mail1.collstream.co.uk has no MX records.
Question and response
Question
dig mail1.collstream.co.uk. MX
Answer
The response has no answer records.
Authority
collstream.co.uk. 3600 SOA ns-a.eurodns.com. hostmaster.eurodns.com. 2025050100 43200 7200 1209600 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0