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Setting up an email subdomain for your agent

How to set up an email subdomain for your CollegeVine agent, from choosing the subdomain through DNS verification.

This guide covers how to set up an email subdomain for your CollegeVine agent, for example agent.yourschool.edu. It walks through choosing the subdomain, adding the DNS records, and verifying the setup.

If you are still deciding between a subdomain and a CollegeVine-managed domain, start with Choosing your agent's email domain.


What your IT team will need to do

Before you start, confirm your IT team can:

  • Access your domain's DNS management console

  • Add CNAME, TXT, and MX records

  • Verify DNS propagation, using nslookup, dig, or an online DNS checker

  • Dedicate the subdomain to CollegeVine agent email only

  • Confirm when the records are live, usually within an hour


Step 1: choose your subdomain

Work with your IT team to pick the subdomain. Common choices:

  • agent.yourschool.edu

  • admissions.yourschool.edu

  • connect.yourschool.edu

The subdomain should be dedicated to CollegeVine agent email and not used for other sending.

Tip: choose carefully. Changing the subdomain later is possible, but the new one starts building its sending reputation from the beginning.


Step 2: CollegeVine creates the domain

Your CollegeVine team configures the subdomain on our side and generates the four DNS records your IT team needs, then sends them to you.


Step 3: your IT team adds the DNS records

You will receive four DNS records:

  • A CNAME record for domain verification

  • A CNAME record for link tracking

  • A TXT record for SPF/DKIM authentication

  • An MX record for inbound email routing

Examples of the required four records:

Type

Host / Name

Value / Points to

Purpose

CNAME

em1234.admissions.yourschool.edu

u1234567.wl123.sendgrid.net

Domain verification

CNAME

url1234.admissions.yourschool.edu

sendgrid.net

Link tracking

TXT

admissions.yourschool.edu

v=spf1 include:sendgrid.net ~all

SPF/DKIM authentication

MX

admissions.yourschool.edu

mx.sendgrid.net

Inbound email (replies)

Your IT team should:

  1. Log into your DNS provider (Cloudflare, Route 53, GoDaddy, or whichever you use).

  2. Add all four records exactly as provided.

  3. Confirm DNS propagation, which usually takes 15 to 60 minutes. You can check with nslookup, dig, or an online DNS checker.

Tip: ask your IT team to whitelist the subdomain in your email security settings. This keeps agent email to internal @yourschool.edu recipients from being flagged.


Step 4: verification and completion

Once the DNS records are live:

  1. Let your CollegeVine team know.

  2. We verify the records and complete the domain setup.

  3. We create the final domain mapping.

  4. Setup is complete.

Typical timeline: 1 to 3 business days from start to finish, mostly dependent on DNS propagation and your IT team's turnaround.


Frequently asked questions

Can we use the subdomain for other email?

No. It should be dedicated to CollegeVine agent email. Using it for other sending interferes with inbound email routing and deliverability tracking.

Will this affect our main domain's reputation?

Minimal impact. The subdomain inherits some reputation from the parent domain, but activity on the subdomain is largely isolated. Email providers treat them as related but distinct sending sources.

Can we change the subdomain later?

Technically yes, but the new subdomain starts building its sending reputation from the beginning. Choose carefully up front.

What if emails are going to spam?

  • For internal recipients at @yourschool.edu, your IT team may need to whitelist the subdomain in your email security settings.

  • For external recipients, this is usually a question of sending volume ramping faster than current engagement supports.

  • Some providers, Microsoft in particular, may require additional sender verification.

Our team monitors deliverability and will flag issues proactively.


After setup

Once the subdomain is live, your agent begins sending on it and builds sending reputation over time. A subdomain inherits some of your institution's existing reputation, so it builds capacity faster than a domain starting from scratch.

For how your daily send allowance works and how to read your email metrics, see Understanding email: sending, cadence, and metrics.

Questions? Contact your CollegeVine team or email [email protected].

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