srv0.mygermanuniversity.com has no MX records.
Question and response
Question
dig srv0.mygermanuniversity.com. MX
Answer
The response has no answer records.
Authority
mygermanuniversity.com. 1800 SOA scott.ns.cloudflare.com. dns.cloudflare.com. 2398170990 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0