CodeTwo Alternative: Signatoro

CodeTwo signs mail through what its own site calls "secure relay technology" hosted on Microsoft Azure, or an Outlook add-in, priced per user with a ten-license minimum. Signatoro's signature is pasted once into each person's own mail app, and Signatoro never sees that mail again. Here is how the two compare, checked on 20 September 2026.

Signatoro is one email signature that works in Gmail, Outlook and Apple Mail, priced by the size of the company: each person pastes it into their own mail app once, and it stays there. CodeTwo is a Microsoft 365 email signature platform that signs mail through a relay hosted on Microsoft Azure or an Outlook add-in, priced per user with a ten-license minimum.

Choose Signatoro

a company is 50 people or fewer, wants a flat price by size with no ten-license floor, and would rather nothing about its mail routed through a relay, even one hosted on Microsoft's own infrastructure.

Choose CodeTwo

a company runs entirely on Microsoft 365, wants signature marketing campaigns with click tracking and one-click satisfaction surveys, and needs signatures that sync from Entra ID automatically.

Signatoro and CodeTwo at a glance

Signatoro

Signatoro is an email signature generator: fill in your details, pick a layout, add a photo or a logo, and copy the result into Gmail, Outlook or Apple Mail, with a guide for each mail app. Signatoro never sits in the mail path, so each person's signature is pasted once and the mail keeps going the way it already went. Signatoro is free for one person, with a small Signatoro link under the signature, and a flat monthly price for a company by size: $9 up to 5 people, $19 up to 15 and $49 up to 50, plus $1.50 a month for each extra member.

CodeTwo

a Microsoft 365 email signature platform that applies signatures through what it calls "secure relay technology" or an Outlook add-in, priced per user with a ten-license minimum, trusted by over 140,000 companies by its own count

CodeTwo Email Signatures 365 is a Microsoft 365 signature platform, trusted by over 140,000 companies according to its own site (read 20 September 2026). It applies signatures through what it calls "secure relay technology" that "reroutes your emails through CodeTwo services hosted on Microsoft Azure," through its own Outlook add-in, or both together. One plan includes every feature, priced per user with volume discounts, with a minimum of ten licenses stated on CodeTwo's own pricing page; at that minimum, its own calculator shows $1.22 a user a month billed yearly, $146.88 a year total ($12.24 a month), with a 14-day free trial and a one-month minimum subscription period. CodeTwo also sells a separate on-premises product, CodeTwo Email Signatures On-prem, released 22 July 2025 the same day its older Exchange Rules Pro was discontinued, for companies that don't want mail routed through the cloud at all.

Side by side

	Signatoro	CodeTwo
How does the signature get onto everyone's mail?	Signatoro never sits in the mail path. Each person builds their signature once and pastes it into their own mail app, so the mail keeps going the way it already went, with nothing of Signatoro's in between.	CodeTwo applies signatures through what its own site calls "secure relay technology" that "reroutes your emails through CodeTwo services hosted on Microsoft Azure," or directly in Outlook through its own add-in, or both together (CodeTwo's own site, read 20 September 2026).
What happens if the company stops paying?	Signatoro applies no signature itself; it only generates the text and image a person already pasted in. So if a company stops paying, nothing already pasted into a mail app breaks, and the next signature built reverts to the free version with the small Signatoro link.	CodeTwo's license is assigned to each user whose mail is routed through its relay or who uses its Outlook add-in, so signing stops once that subscription lapses (CodeTwo's own pricing page, read 20 September 2026).
What does it cost for a ten-person company?	Signatoro costs $16.50 a month for ten people and $19 for fifteen: $9 up to 5 people, $19 up to 15 and $49 up to 50, plus $1.50 per extra member.	CodeTwo's own pricing calculator shows $1.22 a user a month billed yearly at ten licenses, $146.88 a year total ($12.24 a month); the same per-user rate applies at fifteen licenses, $220.32 a year ($18.36 a month) (CodeTwo's own pricing page, read 20 September 2026).
Is there a minimum number of licenses?	Signatoro has no minimum headcount on any plan: the free version covers one person, and the Company price applies from the first person.	Yes. CodeTwo's own pricing page states plainly, "Minimum number of licenses is 10," and its manual adds it is "not possible to order fewer licenses" than that (CodeTwo's own site, read 20 September 2026).
Does it run marketing campaigns or satisfaction surveys?	Signatoro builds and hosts the signature itself; it does not run banner campaigns or track clicks on them.	CodeTwo's own site describes scheduled email marketing campaigns tracked in web analytics tools and one-click customer satisfaction surveys built into signatures.
Does automated or AI-sent mail get the signature too?	Signatoro has a send-path API that a CRM, a sequencer or an assistant can call to fetch the saved signature, so mail an automated tool sends gets the same signature a person pasted in by hand, without routing that mail through Signatoro.	Yes, on CodeTwo's cloud/relay mode, because the signature is applied to mail as it is routed through CodeTwo's own Azure-hosted service regardless of what sent it; the Outlook add-in mode depends on the sending tool using Outlook itself.

When to choose Signatoro instead of CodeTwo

Nothing routes through Signatoro

CodeTwo names its own mechanism outright: "secure relay technology" that "reroutes your emails through CodeTwo services hosted on Microsoft Azure," alongside an Outlook add-in that inserts signatures directly as a person types (CodeTwo's own site, read 20 September 2026). Signatoro takes neither path: a person builds their signature once inside Signatoro and pastes it into their own mail app, and Signatoro never sees that mail again. CodeTwo's relay depends on CodeTwo's own Azure-hosted systems staying connected and paid for; a signature already pasted into a mail app depends on nothing Signatoro operates.

The ten-license floor

CodeTwo's own pricing page states plainly, "Minimum number of licenses is 10," and its manual adds it is "not possible to order fewer licenses" than that (CodeTwo's own site, read 20 September 2026). A company with six or eight people is billed for ten licenses regardless, at CodeTwo's own calculator rate of $1.22 a user a month billed yearly, $12.24 a month total. Signatoro's Company price has no license floor: six people cost $10.50 a month and eight cost $13.50.

When to choose CodeTwo instead of Signatoro

Marketing campaigns and satisfaction surveys tracked centrally

A Microsoft 365 IT or marketing team that wants to schedule signature marketing campaigns tracked in web analytics tools and run one-click customer satisfaction surveys from signatures is who CodeTwo's own features are built for (CodeTwo's own site, read 20 September 2026). What that costs is CodeTwo's own shape: a per-user price on top of a ten-license minimum, $1.22 a user a month billed yearly at that minimum, that runs as long as the subscription does. Signatoro has no marketing campaigns and no satisfaction surveys built in.

Signatures synced automatically from Entra ID

A company already running Microsoft Entra ID that wants contact details and photos kept current in every signature without anyone editing it by hand is who CodeTwo's Entra ID sync is built for; CodeTwo's own site states it caches attributes every 20 minutes. The price of that is a relay dependency: CodeTwo's sync depends on CodeTwo's own systems staying connected to the company's Entra ID tenant. Signatoro has no directory sync; an owner invites each new person, and the invitation arrives with their signature already built.

A competitive per-user rate, once past the ten-license floor

A company that already needs ten or more licenses, and wants CodeTwo's relay, Entra ID sync and campaign features together, gets a genuinely competitive rate for it: CodeTwo's own calculator shows $1.22 a user a month billed yearly, $12.24 a month total at ten licenses and $18.36 a month at fifteen. Both are under Signatoro's $19 a month for fifteen people. What that costs is the same relay dependency as everywhere else on this page: the price is competitive, but the mail still routes through CodeTwo's own servers to get it. Signatoro's flat price does not always win on the number alone.

Questions about Signatoro and CodeTwo

What does CodeTwo cost for a small company?

CodeTwo sells one plan with every feature included, priced per user with volume discounts, but requires a minimum of ten licenses; at that minimum its own pricing calculator shows $1.22 a user a month billed yearly, $146.88 a year total, $12.24 a month, and the same rate applies at fifteen licenses, $220.32 a year, $18.36 a month (CodeTwo's own pricing page, read 20 September 2026). Signatoro's Company plan, by comparison, is a flat $9 a month for up to 5 people with no license minimum, though CodeTwo's per-user rate can undercut Signatoro's price once a company is already at ten or more licenses.

What does Signatoro cost for a small company?

Signatoro is free for one person, with a small Signatoro link under the signature, and a flat monthly price for a company by size: $9 up to 5 people, $19 up to 15 and $49 up to 50, plus $1.50 a month for each extra member.

Does CodeTwo still sell an on-premises product?

Yes. CodeTwo sells a separate on-premises product, CodeTwo Email Signatures On-prem, released 22 July 2025 the same day its older Exchange Rules Pro was discontinued, for companies that don't want mail routed through the cloud at all (CodeTwo's own site, read 20 September 2026). Signatoro has never had a server-side or on-premises product; the paste-once mechanism is the only one it has ever offered.

How does CodeTwo get the signature onto everyone's mail?

CodeTwo applies signatures through a secure relay hosted on Microsoft Azure, an Outlook add-in, or both together (CodeTwo's own site, read 20 September 2026). Signatoro never sits in the mail path; each person builds their signature once and pastes it into their own mail app.

What happens if the company stops paying for CodeTwo?

CodeTwo's license is assigned per user whose mail is routed through its service or who uses its Outlook add-in, so signing stops once that subscription lapses. Signatoro applies no signature itself; it only generates what a person already pasted into their own mail app, so nothing already pasted breaks if a company stops paying Signatoro.

Should a company switch from CodeTwo to Signatoro, or run both?

A company running entirely on Microsoft 365 that wants signature marketing campaigns, satisfaction surveys and Entra ID sync has a real reason to keep CodeTwo, and Signatoro does not do any of those three things. A company whose main complaint is a per-user bill or routing mail through a relay has a real reason to move to Signatoro's flat Company price instead. The two are not built to run side by side on the same mailboxes, since both would be adding a signature to the same mail.

Does either tool sign mail sent by a CRM or an AI assistant automatically?

CodeTwo does, on its cloud/relay mode, because the signature is applied to mail routed through CodeTwo's own service regardless of what sent it. Signatoro does too, through a send-path API that a CRM, a sequencer or an assistant calls to fetch the saved signature, but only once that tool has been pointed at Signatoro's API.

Signatoro against other alternatives

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Sources

CodeTwo's deployment mechanism ("secure relay technology" rerouting mail "through CodeTwo services hosted on Microsoft Azure," the Outlook add-in, or both), its "140k+ companies" claim, its marketing-campaign, web-analytics-tracking and CSAT-survey features, and its Entra ID sync (cached every 20 minutes) are from codetwo.com/email-signatures/, read 20 September 2026. Its pricing, including the verbatim line "Minimum number of licenses is 10" and the manual's note that it is "not possible to order fewer licenses," one plan with all features, $1.22 a user a month billed yearly at ten and at fifteen licenses ($146.88 and $220.32 a year respectively), a one-month minimum subscription period, and a 14-day free trial with no credit card, is from codetwo.com/email-signatures/pricing, read the same day - the ten- and fifteen-license figures are the calculator's actual output at those headcounts, not its ~100-user default, which an earlier draft of this page used in error and which a fresh adversarial review caught. Its on-premises history - Exchange Rules Pro discontinued 22 July 2025, Exchange Rules 2019 discontinued 9 June 2025, and CodeTwo Email Signatures On-prem released as a direct successor the same day as the first discontinuation, still sold today - is from codetwo.com/exchange-rules-family, codetwo.com/email-signatures-on-prem/faq and codetwo.com/kb/exchange-rules-end-of-life/, all read directly the same day; an earlier draft of this page, sourced from Google's cache, wrongly stated CodeTwo no longer sells on-prem at all, corrected here after the same review. Signatoro's own facts and prices are Signatoro's, current as of the pricing live in apps/web/config/company-bands.config.ts, checked the same day.