Web Services Directory

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APIDescriptionCategoryMashups
MailChimpEmail List and Campaign management serviceEmail14     
SendGridCloud based email serviceEmail14     
Google Gmail OAuthEMail serviceEmail13     
Yahoo MailWeb based email systemEmail10     
RapLeafEnable Personalization for ConsumersEmail6     
Amazon SESEmail sending serviceEmail5     
Google Apps Email MigrationMigrate existing email systems to Google AppsEmail5     
ConstantContactEmail marketing serviceEmail3     
AOL Open MailEmail servicesEmail2     
Context.IOEmail inbox as data source serviceEmail2     
Google Email SettingsAllows administration of Google Apps email accountsEmail2     
MailgunIntegrate email mailboxes into appsEmail2     
18amailEmail marketing service Email1     
Campaign MonitorEmail List and Campaign management serviceEmail1     
Data24-7 SMS messaging / carrier / email / cnam lookup serviceEmail1     
MandrillEmail and email template serviceEmail1     
PostmarkEmail management serviceEmail1     
SpamOnDisposable email address serviceEmail1     
WhatCountsEmail management servicesEmail1     
5yMailAnonymous email serviceEmail0     
ActiveCampaign Email marketing serviceEmail0     
AcyMailingEmail Marketing ServiceEmail0     
AlphaMailTransactional email serviceEmail0     
Altairis PaleHorseMailing list management systemEmail0     
Alterian Dynamic MessengerEmail marketing servicesEmail0     
APInboxIncoming emails to web serviceEmail0     
Apsis Newsletter ProEmail newsletter management serviceEmail0     
AtMailWebmail ServiceEmail0     
Atomic Mass Email ServiceMass emailing serviceEmail0     
BenchmarkemailEmail Marketing API Email0     
Birdseye MailTablet email applicationEmail0     
Bitcoin-ContactBitcoin Messaging ServiceEmail0     
BlinkCampaignSocial Media and Email Marketing platformEmail0     
Block Disposable EmailDetect disposable email addressesEmail0     
BrandMyMailEmail and social media integration platformEmail0     
BriteVerifyRealtime email data verificationEmail0     
BrontoEmail marketing serviceEmail0     
bubblebox:mailerEmail marketing campaign serviceEmail0     
Byte Plant Email ValidationEmail Validation ServiceEmail0     
BYU Email VerificationUniversity email verification serviceEmail0     
CakeEngineEmail Marketing ServiceEmail0     
CakeMailEmail marketing serviceEmail0     
CampaignCogEmail marketing campaign serviceEmail0     
Campaigner ElementsEmail marketing campaign management serviceEmail0     
CampaynEmail marketing serviceEmail0     
Carrier PigeonE-mail marketing serviceEmail0     
CDYNE Email VerificationEmail verification serviceEmail0     
CleverReachEmail marketing and delivery serviceEmail0     
Click2mailweb-based email serviceEmail0     
ClickmeterMarketing campaign effectiveness serviceEmail0     
Con4ct MeSpam-resistant short-term contact serviceEmail0     
ContactologyBest Email Marketing APIEmail0     
CopernicaMultichannel marketing campaign management serviceEmail0     
CreatesendE-mail newsletter serviceEmail0     
CritsendEmail sending and receiving serviceEmail0     
Customer.ioEmail campaign optimization serviceEmail0     
Data8 Email ValidationEmail validation serviceEmail0     
DeliveryWatchEuropean email delivery tracking serviceEmail0     
DelivraEmail marketing serviceEmail0     
Dialect PremailerHTML email preparation serviceEmail0     
Direct Mail ManagerDirect mail marketing serviceEmail0     
DirectIQEmail marketing serviceEmail0     
Disposable E-Mail AddressTrash mail serviceEmail0     
DripAutomated email marketing serviceEmail0     
Easy Antispam Email spam servicesEmail0     
eCoComa EmailE-mail receiving and validation servicesEmail0     
Elastic EmailCloud email delivery serviceEmail0     
Email Address ValidatorEmail address validation serviceEmail0     
Email Center ProEmail management services for customer service teamsEmail0     
Email CheckerEmail address validation serviceEmail0     
Email Data SourceEmail marketing campaign managementEmail0     
Email PieEmail address validation serviceEmail0     
Email YakWeb based email APIEmail0     
Email YoYo VerificationEmail verification serviceEmail0     
Email2HTTPEmail delivery servicesEmail0     
EmailBrainEmail marketing campaign management serviceEmail0     
EmailDirectEmail marketing campaign management serviceEmail0     
EmailifiedEmail Verification ServiceEmail0     
EmailloopEmail marketing serviceEmail0     
EmailManagerEmail marketing and CRM synchronization systemEmail0     
EmailOnAcidEmail Testing Service Email0     
EmailOutbound Email ListEmail marketing serviceEmail0     
emailREmail marketing serviceEmail0     
Emailtor Email VerificationEmail address verification serviceEmail0     
EmailValidateEmail address validation serviceEmail0     
Emailvision Campaign CommanderEmail marketing serviceEmail0     
eMarketeerMarketing campaign tracking serviceEmail0     
EmmaEmail marketing serviceEmail0     
ExactTargetEmail delivery servicesEmail0     
Experian CheetahMailEmail marketing campaign management serviceEmail0     
FiestaGroup email and mailing list serviceEmail0     
FractalHTML email validation and fixing serviceEmail0     
FraudLabs MailBox ValidatorEmail address validation serviceEmail0     
FullContact Disposable EmailEmail verification toolEmail0     
FuseMailEmail hosting serviceEmail0     
FuturemailEmail Scheduling and Queuing ServiceEmail0     
GetResponseEmail marketing serviceEmail0     
Google Apps Group MigrationEmail and file migration serviceEmail0     
Google CardDAVContact information management serviceEmail0     
GraphicMailEmail newsletter serviceEmail0     
GraphicMailOnline email marketing serviceEmail0     
Guerrilla MailTemporary Email ServiceEmail0     
GuubieEmail marketing platform for startupsEmail0     
Happy GrasshopperEmail marketing services providerEmail0     
iContactEmail marketing serviceEmail0     
ImpressionwiseEmail data verification serviceEmail0     
Inbox25Email marketing campaign management serviceEmail0     
InboxFeverEmail enhancement serviceEmail0     
Industry Mailout MyMailoutEmail marketing and delivery serviceEmail0     
IntelliContactEmail marketing serviceEmail0     
Is EmailEmail address validation serviceEmail0     
isemail Address ValidationEmail address format validation serviceEmail0     
Jango SMTP EventTransactional email serviceEmail0     
JangoMailMass Email ServiceEmail0     
KlaviyoEmail marketing platformEmail0     
leadsNyou Email MarketingEmail Marketing ServiceEmail0     
LeadspendEmail address validation serviceEmail0     
ListiMonkeyTwitter list email delivery applicationEmail0     
ListrakEmail marketing campaign serviceEmail0     
Little Green PlaneU.K. mail marketing campaign management serviceEmail0     
LuxSciEmail hosting/archiving & filesharing serviceEmail0     
Lyris HQ EmailEmail marketing serviceEmail0     
Mad Mimi MailerMass email marketing toolEmail0     
Mail MonitorEmail marketing campaign managementEmail0     
mail2Email marketing serviceEmail0     
MailbuildEmail forms and templates serviceEmail0     
MailerLiteEmail marketing serviceEmail0     
MailerMailerEmail marketing campaign management serviceEmail0     
MailerSoftEmail marketing serviceEmail0     
MailigenE-mail marketing serviceEmail0     
MailinatorProEmail management for domainsEmail0     
Mailing ReportEmail Analysis ServiceEmail0     
MailingBirdEmail marketing & address validation serviceEmail0     
MailjetCloud hosted email platformEmail0     
mailparser.ioEmail parsing serviceEmail0     
MailtrustEmail hosting serviceEmail0     
MailupBroadcast email serviceEmail0     
mailZAutomated email response serviceEmail0     
MarketingshipEmail marketing serviceEmail0     
Maxi ResponseEmail marketing serviceEmail0     
Message FacesDisplay sender portraits in email inboxEmail0     
MessageGearsCloud email delivery serviceEmail0     
MESSAGEmanagerSMS and email message monitoring serviceEmail0     
Mirkolofio MailinatorEmail serviceEmail0     
Movable InkLive email content serviceEmail0     
Murrion Software Track Email OpensEmail marketing campaign tracking serviceEmail0     
MXSaveEmail backup and recovery serviceEmail0     
MxToolBoxServer blacklist status look-up serviceEmail0     
MyBizMailerEmail marketing serviceEmail0     
MyNewsletterBuilderEmail marketing and delivery serviceEmail0     
Net AtlanticEmail marketing service; list and campaign management; bulk email sender; mass email servicesEmail0     
NewsmanEmail newsletter campaign management serviceEmail0     
NewsweaverInternal communications and email marketing serviceEmail0     
NicereplyEmail customer service platformEmail0     
OngageEmail marketing platformEmail0     
Orange EmailInactive - Email serviceEmail0     
Orange Personal MessagesInactive - Mobile email messaging serviceEmail0     
Oxilion AntispamDutch anti-spam serviceEmail0     
Pizzazz EmailEmail Publishing ServiceEmail0     
PostageAppEmail management serviceEmail0     
Postcode Anywhere Email ValidationEmail validation serviceEmail0     
Postmark SpamcheckEmail spam filtering serviceEmail0     
PowerInboxEmail application platformEmail0     
PublicasterEmail marketing managementEmail0     
Quickie Marketing ScrubEmail Database Scrubbing ServiceEmail0     
Rackspace EmailEmail hosting serviceEmail0     
RapportiveContact information add-on for emailEmail0     
Real MagnetBlast email serviceEmail0     
Royal Mail E*ProOnline docketing serviceEmail0     
RPostRegistered email servicesEmail0     
SailthruCustomized communication serviceEmail0     
Sapo MailEmail management serviceEmail0     
SelecTrucks Email SignupUsed truck retailer mailing list signup serviceEmail0     
SendGrid Customer SubuserEmail user management serviceEmail0     
SendGrid EventEmail analytics serviceEmail0     
SendGrid NewsletterNewsletter management serviceEmail0     
SendGrid ParseEmail parsing and posting serviceEmail0     
SendGrid ResellerCustomer management serviceEmail0     
SendGrid SMTPCustom email handling serviceEmail0     
SendicateEmail marketing applicationEmail0     
Sendinc RESTEmail encryption servicesEmail0     
Sendinc SMTPEmail encryption servicesEmail0     
SendLabsEmail marketing serviceEmail0     
SendloopEmail marketing serviceEmail0     
SendmachineEmail marketing serviceEmail0     
sendwithusTransactional mail marketing toolsEmail0     
SendyEmail newsletter serviceEmail0     
ServiceObjects DOTS Email ValidationEmail validation serviceEmail0     
ShortmailLength limited email serviceEmail0     
SilverpopMarketing automation serviceEmail0     
SmarterTools SmarterMailEnterprise email managment serviceEmail0     
SmartSourceEmail delivery servicesEmail0     
SMTP.comBulk and transactional email serviceEmail0     
SocketLabs Email On DemandHosted on demand email serviceEmail0     
SpamtyEmail address encryption serviceEmail0     
StesCodes Address Book ImporterMail Address Book GrabberEmail0     
StoreMailE-mail marketing serviceEmail0     
StreamSendEmail marketing serviceEmail0     
StrikeIron Email Verification and HygieneValidate Emails with Optimal AccuracyEmail0     
SubscriberMailEmail marketing serviceEmail0     
SupportBreezeSupport email tracking serviceEmail0     
Tarya Technologies ChkMailEmail address validation serviceEmail0     
TEC MailingBulk email data validation serviceEmail0     
Tiscali Email ServicesE-mail validation and sending serviceEmail0     
Topica Email marketing serviceEmail0     
ToutappEmail template and campaign serviceEmail0     
ubivoxEmail marketing serviceEmail0     
UCRUXEmail Marketing Software ServiceEmail0     
UndisposableCollaborative protection against disposable emailEmail0     
Unified eMailEmail management serviceEmail0     
UserfoxEmail management platform Email0     
VeroCustomer behavior-based email campaign serviceEmail0     
VerticalResponseEmail service providerEmail0     
VerticalResponse RESTEmail and social media marketing and analysis serviceEmail0     
Webmail.usEmail hosting serviceEmail0     
WriteThat.NameContact Info Auto-Enriching ServiceEmail0     
XQueue MaileonGerman newsletter marketing platformEmail0     
XWebEmailValidationEmail address validation serviceEmail0     
Yahoo Mail ApplicationsPlatform for email extensionsEmail0     
YesMailEmail marketing campaign serviceEmail0     
YippieMoveEmail migration serviceEmail0     
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John Musser
Founder, ProgrammableWeb

Adam DuVander
Executive Editor, ProgrammableWeb. Author, Map Scripting 101. Lover, APIs.