Here is a list of merge tags from well knows Email Service Providers that we have collected:

ACT-ON
{{E-mail Address}}
​
​ACTIVECAMPAIGN
​%EMAIL%
​
​ACXIOM
​mid=<DI_MEMBER_ID/>
​
​ADESTRA
​[*data('email')*]
​
​AWEBER
{!email}
​
​BENCHMARK EMAIL
​[contact_attribute: Email Address]
​
​BLUE HORNET
​%%to_email%%
​
​BRONTO
​%%!contact_email%%
​
​CAMPAIGN MASTER
​[!EmailAddress!]
​
​CAMPAIGN MONITOR
​[email]
​
​CAMPAIGNER
​[Contact.Email]
​
​CHEETAHMAIL
​%%email%%
​
​CLEARWEBB
$email
​
​CONSTANT CONTACT
​$Subscriber.EMAIL
​
​CONVIO LUMINATE
​[[S1:primary_email]]
​
​DOTMAILER
​@EMAIL@
​
​ELOQUA
​<span class=eloquaemail>EmailAddress</span>
​
​EMARSYS
$E-Mail$ 

EMERCURY
%email%
​
​EMMA
[[email]]
​
​EWAYDIRECT
<%=subscriber.email%>
​
​EXACTTARGET
%%emailaddr%%
​
​EXPERTSENDER
*[subscriber_email]*
​
​GETRESPONSE
​[[email]]
​
​HUBSPOT
{{contact.email}}
​
​ICONTACT
​[email]
​
​INFUSIONSOFT
​~Contact.Email~
​
​LISTRAK
#Listrak\Email#
​
​LYRIS HQ
​%%EMAIL_ADDRESS%%
​
​LYRIS LM
​%%emailaddr%%
​
​MAD MIMI
​(email)
​
​MAILCHIMP
​*|EMAIL|*
​
​MAILIGEN
​#[EMAIL]#
​
​MAILINGREPORT
​{{contact.email}}
​
​MAILJET
[[EMAIL_TO]]
​
​MARKETO
{{lead.Email Address:default=noemail}}
​
​NATIONBUILDER
​{{ recipient.email }}
​
​PARDOT
%%email%%
​
​PULSECONNECT
​[-EMAILADDR-]
​
​PURE360
{~email~}
​
​RESPONSYS
$EMAIL_ADDRESS_$
​ 
​SAILTHRU
{email}
​
​SALSA
[[Email]]
​
​SDL EMAIL MANAGER
​{toemail}
​
​SELLIGENT
~MAIL~
​
​SENDBLASTER
#email#
​
​SILVERPOP
%%Email%% -
​
​SMARTFOCUS (FORMERLY EMAILVISION)
​[EMV FIELD]EMAIL[EMV /FIELD]
​
​SMARTSOURCE
@[EMAIL]
​
​SPLIO
$email$
​
​STREAMSEND
{{contact.{email_address}}}
​
​STRONGVIEW
##email##
​
​TIKIT EMS
​~emailAddress~
​
​VERTICAL RESPONSE
​{EMAIL_ADDRESS}
​
​WHATCOUNTS PROFESSIONAL
​%%$email%%