Understanding the “Send Email on Behalf of User”
The “Send Email on Behalf of User API” is a powerful tool that allows applications to send emails from a user’s email address, with their consent, on their behalf. This API is particularly useful in applications where communication is a critical function, such as in CRMs, ATSs, and outreach platforms.
The Benefits of Sending Emails “On Behalf” with Your Software
Integrating the “Send Email on Behalf” feature into your software can significantly enhance its functionality and user value. Here are the three most impactful benefits:
Enhanced Personalization
When emails are sent on behalf of a user, they come directly from that individual’s email address, making the communication feel personal and direct. This is especially valuable in CRM systems, where building and maintaining strong relationships with customers is crucial. Personalized emails are more likely to be opened, read, and acted upon, leading to higher engagement and conversion rates.
Increased Efficiency and Automation
Sending emails “on behalf” of users can automate numerous processes that would otherwise require manual effort. For instance, in an ATS, automated emails can be sent to candidates after certain stages in the hiring process, such as interview scheduling or job offers. This reduces the workload on teams and ensures consistent, timely communication.
Strengthened Trust and Authenticity
Emails sent on behalf of a user have a higher level of trust since they originate from a familiar email address. This authenticity improves the likelihood that recipients will engage with the content, as they perceive the communication as genuine and directly from the user rather than a third-party service.
Email on Behalf API in ATS: Streamlining Candidate Communication
In an ATS, the Email on Behalf API automates key candidate communications, such as interview scheduling and offer letters. This ensures that messages are sent promptly from recruiters’ email addresses, providing a seamless and personalized experience for candidates while reducing manual workload for HR teams.
Email on Behalf API in CRM: Enhancing Customer Engagement
In a CRM, the Email on Behalf API enables automated, personalized outreach from sales or support reps. By sending emails directly from the user’s address, the API enhances trust and engagement with customers, making follow-ups, updates, and promotional emails feel more authentic and personal.
Integrating Email on Behalf API with Gmail
Gmail is one of the most popular email providers for businesses. Connecting the Email on Behalf API with Gmail allows your software to send emails directly from users’ Gmail accounts, leveraging Gmail’s robust infrastructure and security. This approach is particularly useful for users who rely on Gmail for daily communication, ensuring seamless and reliable email delivery.
To use the Gmail API, start by setting up a Google Cloud project and enabling the Gmail API for it. Then, create OAuth Client ID credentials in the Google Developers Console, adding the required authorized redirect URIs. Finally, enable the necessary API libraries through the “APIs & Services” section of the console.
Using the Email on Behalf API with Outlook
Outlook is widely used in corporate environments. By implementing the Email on Behalf API with Outlook, your software can send emails on behalf of users through their Outlook accounts. This setup supports Office 365 and Exchange, providing a secure and familiar experience for users who prefer Microsoft’s email platform.
Discover All API Email Features
Email Features
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| Account connection | |||
| Hosted Auth: White label email auth |  |
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| Custom auth: Connect user with credentials | |
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| Gmail or Microsoft OAuth: Use your App Oauth screen | |
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| Send/Receive | |||
| Email sending API | |
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| Email listing API | |
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| Organize | |||
| Email deletion API | |
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| Email moving API | |
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| Email folder listing API | |
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| Email folder retrieval API | |
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| Webhooks | |||
| Email webhook for new messages | |
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| Email open and click tracking API | |
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Gmail
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|---|---|
| Account connection | |
| Hosted Auth: White label email auth | |
| Custom auth: Connect user with credentials |  |
| OAuth: Use your App Oauth screen | |
| Send/Receive | |
| Email sending API | |
| Email listing API | |
| Organize | |
| Email deletion API | |
| Email moving API | |
| Email folder listing API | |
| Email folder retrieval API | |
| Webhooks | |
| Email webhook for new messages | |
| Email open and click tracking API | |
How to Set Up Send Email API
One Link Hosted Auth vs. Full OAuth Flow
Unipile’s Hosted Auth simplifies email integration by automatically detecting email providers and managing the authentication process. This reduces the complexity of initial setup, speeding up development and minimizing maintenance efforts. With a streamlined authentication system, Unipile provides reliable and secure connections, allowing developers to concentrate on improving user experience instead of dealing with technical challenges.
Ensuring Security with Email on Behalf API
Security is paramount when using the Email on Behalf API. Implement strong authentication methods like OAuth 2.0, encrypt all data in transit and at rest, and regularly monitor for unauthorized access. These measures protect user data and ensure that emails are sent securely and reliably.
Developer Benefits of Implementing Send Email API
Seamless Integration and Technical Support
Easily integrate the Send Message LinkedIn API with the help of detailed documentation and sample code. These resources are designed to streamline the setup process and quickly enhance your application’s messaging capabilities.
Dedicated Developer Assistance
Our support team is ready to help at every stage of integration, offering real-time troubleshooting and strategic advice from both our development and marketing teams.
Ongoing Maintenance and Updates
Benefit from continuous updates and proactive maintenance, ensuring the Send Message LinkedIn API stays reliable and compliant with LinkedIn’s latest standards, reducing downtime and boosting performance.
FAQs
How does the Send Email on Behalf API work?
The API allows your software to send emails directly from a user’s email address with their consent. This is especially useful in CRMs, ATSs, and outreach tools where personalized communication is critical.
Why is the Send Email on Behalf API beneficial for CRM and ATS platforms?
The API enhances personalization and automation, making communication more efficient. In CRMs, it fosters stronger customer relationships, while in ATSs, it streamlines candidate interactions like interview scheduling and offer letters.
What email providers can the Send Email on Behalf API integrate with?
The API can be integrated with major email providers like Gmail, Outlook, and any service supporting IMAP, allowing flexibility across different user email setups.
How does the API ensure the security of sent emails?
The API employs strong security measures, including OAuth 2.0 authentication, encryption of data both in transit and at rest, and continuous monitoring to prevent unauthorized access.
Can the API support large-scale email campaigns?
Yes, the API is designed to handle large volumes of emails efficiently, making it ideal for outreach tools that require scalable and personalized communication strategies.
What are the setup steps for integrating the API with Gmail or Outlook?
For Gmail, you need to set up a Google Cloud project, create OAuth credentials, and enable API libraries. For Outlook, you’ll follow a similar process using the Microsoft API with support for Office 365 and Exchange.
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