dsl.telepac.pt has no MX records.
Question and response
Question
dig dsl.telepac.pt. MX
Answer
The response has no answer records.
Authority
dsl.telepac.pt. 7200 SOA dnsbho1aut01.local. root.mail.telepac.pt. 2011069910 28800 7200 604800 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0