Who This Is For / When to Use
Account owners setting up email sending from a custom domain
Teams integrating Kyrios with SMTP-based tools (warm-up services, apps, CRMs)
Users managing email deliverability and sender reputation
Accessing SMTP Services
Open Settings from the bottom-left of your Kyrios dashboard.
Select Email Services.
Click the SMTP Service tab.
Select Dedicated Domain And IP.
This section is required to manage domains and SMTP credentials.
Adding a Dedicated Domain
From Dedicated Domain And IP, click Add Domain.
Enter your domain name using lowercase characters only.
Click Add & Verify.
After clicking Add & Verify, DNS records are generated for verification.
Verifying the Domain
Copy the DNS records shown in Kyrios.
Add these records in your domain provider’s DNS manager.
Return to Kyrios and click Verify Now.
The domain status updates once DNS verification succeeds.
Opening SMTP Settings for a Domain
Locate your verified domain.
Click the three-dot (⋯) menu next to the domain.
Select SMTP Settings.
This opens the SMTP credentials page for that domain.
Creating SMTP Credentials
Click Create New SMTP User.
Enter a username (login).
Enter and confirm a password.
Click Create.
A success message confirms the credentials were added.
Viewing SMTP Credentials and Usage
After creation, the SMTP user appears in the list with:
Login name
Creation date
Reset Password option
Delete option
Email usage statistics appear on the right panel.
Resetting an SMTP Password
Locate the SMTP user.
Click Reset Password.
Enter a new password.
Confirm to save changes.
Use this when rotating credentials or reconnecting integrations.
Deleting SMTP Credentials
Locate the SMTP user.
Click Delete.
Confirm deletion.
Deleting credentials immediately disables email sending with that login.
SMTP Limits and Rules
SMTP users per domain: Maximum of 5
Daily sending limit: 1,500 emails per account
If the daily limit is exceeded, all SMTP credentials for dedicated domains are automatically deleted.
Direct Email Reception
Emails sent directly to addresses on your dedicated domain (for example, [email protected]) appear in the Conversations tab automatically.
No outbound email is required first.
IMAP and Incoming Email Clarification
Kyrios does not host mailboxes.
POP and IMAP are not supported within Kyrios.
SMTP credentials are only for sending email.
To receive emails, use your external email provider’s IMAP settings.
Common IMAP Examples (External Providers)
IMAP Host:
imap.gmail.comPort:
993Username: Email address
Password: App password
AOL
IMAP Host:
imap.aol.comPort:
993
Verizon
IMAP Host:
imap.verizon.netPort:
995
For other providers, contact them directly for IMAP details.
Pro Tips
Use SMTP credentials with a warm-up service to build sender reputation.
Create separate SMTP users for each team member.
Rotate passwords regularly.
Monitor deliverability and domain verification status.
FAQ
What are SMTP credentials used for?
SMTP credentials authenticate email sending from your dedicated domain and allow integration with third-party services.
Can I create multiple SMTP users for one domain?
Yes. Up to five SMTP users can be created per dedicated domain.
Can SMTP credentials receive emails?
No. SMTP is only for sending. Incoming email must be handled by your external email provider.
Does deleting an SMTP user remove email history?
No. Email history and statistics remain. Only sending access is removed.
Why is domain warm-up important?
Warm-up gradually builds sender reputation and reduces spam placement. SMTP credentials can be connected to warm-up tools to automate this process.