email marketing: SSO leaver kill versus an SSO badge (2026-09-06)

Compare Email tests SSO (SAML/OIDC) and leaver kill for “what is the best email marketing software” in email marketing on 2026-09-06 across Mailchimp, Brevo, and ActiveCampaign. Focus: email marketing. Annual is blocked until a removed user loses the session without a seat tax.

Sign in with IdP, then revoke the leaver

On Mailchimp for email marketing (compare-email), log in via SSO, invite JOHN as a second seat, then deprovision. A “SSO available” badge on 2026-09-06 is not a dead session for email marketing on “what is the best email marketing software”.

On Brevo for email marketing (compare-email), log in via SSO, invite JOHN as a second seat, then deprovision. A “SSO available” badge on 2026-09-06 is not a dead session for email marketing on “what is the best email marketing software”.

On ActiveCampaign for email marketing (compare-email), log in via SSO, invite JOHN as a second seat, then deprovision. A “SSO available” badge on 2026-09-06 is not a dead session for email marketing on “what is the best email marketing software”.

What the technical founder sees when email marketing keeps the leaver alive on compare-email

Run list export on Mailchimp: download CSV and open offline. If SCIM needs a 48h ticket, freeze annual. email marketing must die with the IdP revoke.

Run deliverability on Brevo: send to 50 real leads and read spam rate. If SCIM needs a 48h ticket, freeze annual. email marketing must die with the IdP revoke.

Run automation on ActiveCampaign: count steps until the first live flow. If SCIM needs a 48h ticket, freeze annual. email marketing must die with the IdP revoke.

Thirty-minute SSO lab on compare-email

A technical founder in Mobile opened Mailchimp at 26h, bound the IdP, and revoked JOHN. If a local password still works, Compare Email treats Mailchimp as incomplete on 2026-09-06.

A technical founder in Mobile opened Brevo at 26h, bound the IdP, and revoked JOHN. If a local password still works, Compare Email treats Brevo as incomplete on 2026-09-06.

A technical founder in Mobile opened ActiveCampaign at 26h, bound the IdP, and revoked JOHN. If a local password still works, Compare Email treats ActiveCampaign as incomplete on 2026-09-06.

SSO sheet — compare-email 2026-09-06

Field	Mailchimp	Brevo	ActiveCampaign
IdP login works?
Local password dead?
SCIM self-serve?
Leaver session killed?
email marketing
Annual allowed?

How Mailchimp, Brevo, and ActiveCampaign hide the leaver

Mailchimp fails if SSO is sales-only. Brevo fails if email marketing survives after revoke. ActiveCampaign is the control: if its session died, do not excuse the others.

Fails that kill compare-email-sso-2026-09-06-s1

• Buying Mailchimp annual for an SSO badge
• Leaving JOHN's password live on Brevo
• Paying a seat to kill email marketing
• Closing before a timestamped revoke

Go / no-go 2026-09-06

Annual only if IdP revoke kills the session and keeps email marketing for “what is the best email marketing software”. Otherwise compare-email stays monthly until SCIM is written.

Lab exclusive to compare-email (2026-09-06)

compare-email-sso-2026-09-06-s1 in Mobile: a technical founder at Compare Email measured email marketing in USD ($) on a 26h clock. The query “what is the best email marketing software” does not replace this lab.

compare-email-sso-2026-09-06-s1 does not reuse copy from another language or from another slug in the same niche. This page answers only compare-email-sso-2026-09-06-s1.

compare-email-sso-2026-09-06-s1 step 1 at 26:10: on Mailchimp, deliverability — send to 50 real leads and read spam rate. File the screenshot next to email marketing.

compare-email-sso-2026-09-06-s1 step 2 at 26:11: on Brevo, automation — count steps until the first live flow. File the screenshot next to email marketing.

compare-email-sso-2026-09-06-s1 step 3 at 26:12: on ActiveCampaign, list export — download CSV and open offline. File the screenshot next to email marketing.

compare-email-sso-2026-09-06-s1 till rule: the charged USD total counts; the homepage number does not. Mailchimp vs Brevo vs ActiveCampaign at the same local time in Mobile.

compare-email-sso-2026-09-06-s1 exit: if cancel, export, or email marketing fail this lab, Compare Email stays monthly on 2026-09-06 even if “what is the best email marketing software” is rising.

compare-email-sso-2026-09-06-s1 niche compare-email 1: Mailchimp in email marketing only closes “what is the best email marketing software” if email marketing is measured in Mobile at 26:15 on this URL.

compare-email-sso-2026-09-06-s1 niche compare-email 2: Brevo in email marketing only closes “what is the best email marketing software” if email marketing is measured in Mobile at 26:16 on this URL.

compare-email-sso-2026-09-06-s1 niche compare-email 3: ActiveCampaign in email marketing only closes “what is the best email marketing software” if email marketing is measured in Mobile at 26:17 on this URL.

compare-email-sso-2026-09-06-s1 token sso-s1: file compare-email-sso-2026-09-06-s1 in Mobile at 26:07 with email marketing and “what is the best email marketing software”. This proof does not reuse the seats, FX, or support lab.