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SMTP accounts

Connect any mail provider by SMTP, with optional IMAP reply sync, verify the connection, and manage credentials.

SMTP accounts let Stynar send campaigns through any external mail provider — the right choice when you're routing through a specific platform like Amazon SES, SendGrid, Mailgun, Zoho Mail, or a private mail server, or any provider that isn't Gmail or Outlook.

Connection fields

Field	What it means
From Name	The display name recipients see in their inbox — typically your name or company name.
From Email	The sender address that appears in the From field for all campaign emails.
SMTP Host	The SMTP server hostname provided by your mail provider.
Port	The connection port — typically 465 for SSL or 587 for STARTTLS.
SMTP Username	Your mailbox username or email address used for SMTP authentication.
SMTP Password	Your account password or an app-specific password generated by your provider.

Add SMTP Account

Enter the sender identity and SMTP credentials for your mail provider.

Verify Connection

Run a verification test to confirm the credentials and server connectivity are valid.

Re-verify

Run verification again after updating credentials or changing server settings.

Send Campaigns

Assign the verified SMTP account to campaigns and begin delivery.

Setting this up for Gmail?

Click the "Use quick setup" link right in the form — it fills in Gmail's host and port automatically, so all you need is the address and an app password.

Reply sync (IMAP)

A checkbox in the connection form — Enable reply sync (IMAP) — turns on a second set of credentials so replies land directly in this mailbox and sync to your campaigns automatically, instead of routing through a platform capture address. Most providers pair an SMTP host with a matching IMAP one (smtp.example.com → imap.example.com) and reuse the same login, so the fields usually fill in sensibly on their own.

Only replies, never the rest of your mailbox

Reply sync only ever reads messages replying to emails this platform sent — nothing else in the inbox is touched.

Verify, edit, disconnect

Field	What it means
Verify	Tests SMTP server connectivity and credential authentication — run this before assigning the account to campaigns.
Edit	Update sender display name, email address, SMTP credentials, or IMAP settings without removing the account.
Disconnect	Permanently remove the SMTP account from Stynar.
Status	The current verification state of the account — Not Verified, Testing, Connected, or Failed.

SMTP verification statuses

Not Verified – Credentials have been saved but verification has not been run yet.
Testing – Verification is currently in progress.
Connected – The SMTP connection was established successfully and the account is ready to send.
Failed – The connection or authentication failed — check your credentials, hostname, and port settings.

Always verify before sending

SMTP accounts must pass verification before being used for campaign delivery. An unverified or failed account assigned to a campaign will cause delivery failures and may pause the campaign automatically.

Compatible SMTP providers

Gmail App Passwords, Microsoft 365, Zoho Mail, Amazon SES, Mailgun, SendGrid, Brevo, and any standard SMTP-compatible mail service are supported.

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