Domain Name	Found on	Still exists
analytics.alt3.gmail-smtp-in.l.google.com	Subdomain Center
autoconfig.alt3.gmail-smtp-in.l.google.com	Subdomain Center
autodiscover.alt3.gmail-smtp-in.l.google.com	Subdomain Center
aws.alt3.gmail-smtp-in.l.google.com	Subdomain Center
gitlab.alt3.gmail-smtp-in.l.google.com	Subdomain Center
mail2.alt3.gmail-smtp-in.l.google.com	Subdomain Center
mx.alt3.gmail-smtp-in.l.google.com	Subdomain Center
owa.alt3.gmail-smtp-in.l.google.com	Subdomain Center
stats.alt3.gmail-smtp-in.l.google.com	Subdomain Center
upload.alt3.gmail-smtp-in.l.google.com	Subdomain Center
v1.alt3.gmail-smtp-in.l.google.com	Subdomain Center

Found 11 subdomains.

Results foralt3.gmail-smtp-in.l.google.com