If you need the Acquisition Report with email addresses, ask a developer through a ticket. Developer will run the following SQL to get you what you need:
select * from ( select initcap(coalesce(nullif(rd.first_name, ''), nullif(a.attendeefirstname, ''), u.firstname, '')) as first_name,
initcap(coalesce(nullif(rd.last_name, ''), nullif(a.attendeelastname, ''), u.lastname, '')) as last_name,
initcap(coalesce(nullif(rd.email, ''), nullif(a.email, ''), u.email, '')) as email,
initcap(coalesce(nullif(a.display_name, ''))) as display_name,
coalesce(a.picture, u.picture_url) as picture,
coalesce(a.company_name, u.company_name) as company_name,
coalesce(a.title, u.company_position) as company_position,
rd.confirmation_time,
rd.posts_received,
rd.messages_received,
rd.smallest_impression_interval,
null advocate_count,
case when rd.clicked_impression_sender_id is not null
then initcap(csender.firstname) || ' ' || initcap(csender.lastname)
else initcap(isender.firstname) || ' ' || initcap(isender.lastname)
end successful_advocate
from registration_data rd
inner join attendee a
on a.id = rd.attendee_id
left join users u on u.id = a.user_c
left join users isender on isender.id = rd.last_impression_sender_id
left join users csender on csender.id = rd.clicked_impression_sender_id
where rd.conference_id = ? and rd.growth > 'None' ) insql
order by first_name, last_name
NOTE: This is for developer and internal use ONLY.