Signature 365 review (2026): is it worth $7.52 a month, billed yearly?
Cloud email signatures and campaigns for Microsoft 365
Black Friday: is there a Signature 365 sale?
Signature 365 report card
Fair · out of 4.0 · graded Nov 13, 2026
Best for email signatures for Microsoft 365
Signature 365 manages signatures and email banner campaigns centrally for Microsoft 365, from $7.52 a month for 10 users on annual billing. It is Microsoft 365 only, counts shared mailboxes as users, and sits outside the money-back guarantee Symprex gives its other software.
Who Signature 365 is for
- Fits if you run Microsoft 365 for 10 or more people
- Works for companies that want the same signature and campaign banner on all mail
Who Signature 365 is not for
- Skip it if you use Google Workspace, since it targets Microsoft 365 only
- Not for you if you have fewer than 10 users, as the minimum is 10
- Watch out: licenses count every user and shared mailbox, signature or not
- Watch out: it is not covered by the 30-day money-back guarantee on Symprex's other software
- Watch out: cancelling ends the subscription at period end and the data is deleted
Why Signature 365 gets a 2.0
Five grades, each with its reason. The GPA is their average: an A is 4 points, an F is none.
- CValue for money$7.52 a month for the 10-user minimum on annual billing ($9.40 monthly), and $816 a year for 100 users, which is in the middle of what signature tools charge.
- CFree plan and trialA 14-day trial with no card or commitment, then nothing free.
- CFeaturesCentral dashboard, segmentation, directory details, campaigns, analytics, disclaimers and an Outlook add-in. It covers Microsoft 365 only, with no Google Workspace.
- CEase of useNo rating on record. You connect Entra ID, build templates and deploy the add-in.
- CPlatforms and integrationsWeb dashboard and Outlook add-in for Microsoft 365 only.
What these grades rest on. Graded from this listing, whose facts were read from Symprex's own pages on 13 November 2026. Not based on using the product, and shorter than our full reviews. How we review and grade.
Make Signature 365? Put this grade on your site
Paste this where you want the badge. It links here and follows the grade if it changes. About badges
<a href="https://toolgpa.com/tools/signature-365#review"><img src="https://toolgpa.com/badge/signature-365.svg" alt="Signature 365: 2.0 GPA on ToolGPA" width="196" height="56"></a>Where Signature 365 stands among email signature tools
Signature 365's GPA of 2.0 is higher than 3 of the 22 other email signature tools we grade, and level with 2.
Its paid plans start at $7.52 a month, against a middle price of $4.50 for the category: 12 of the 18 others that charge start lower.
On features, ease of use and platforms it scores 2.0 out of 4. 8 tools score higher and cost less.
Each grade against the category
Every bar is all 23 email signature tools we grade, cut by the letter each got. Signature 365’s own letter is outlined.
- CValue for moneyAbove 3 of 22, level with 10
- CFree plan and trialAbove 6 of 22, level with 14
- CFeaturesAbove 0 of 22, level with 11
- CEase of useAbove 0 of 22, level with 22
- CPlatforms and integrationsAbove 0 of 22, level with 7
Price against what you get
Each dot is one of 19 email signature tools. Further left costs less, and higher up scores better on features, ease of use and platforms. Point at a dot to see which tool it is.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Keep Signature 365, or make your own?
Keep it
To replace Signature 365 you would be making email sent in volume that still reaches the inbox. That is not a weekend's work, with an AI app builder or without one.
That makes this kind of software worth paying for, not this one in particular: 17 of the 22 other email signature tools grade higher. It costs $90.24 a year.
What you could make
- Email signature and reports: an app builder makes these well.
What you could not
- Email sent in volume that still reaches the inbox.
What this rests on. Signature 365’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
What is Signature 365?
Signature 365 is a cloud service from Symprex that manages email signatures, banner campaigns and legal disclaimers for Microsoft 365 and Office 365. Admins build templates in a central dashboard, assign them by department or user, and pull contact details from the directory. It has one all-features plan priced by user count.
Worth knowing
- It is built for Microsoft 365 and Office 365; the pages mention Exchange Server only as the target of a separate Symprex product.
- The minimum is 10 users, and licenses are counted for each user and shared mailbox whether or not a signature is added.
- Signature 365 is not covered by the 30-day money-back guarantee that Symprex states for its other software.
- Cancelling terminates the subscription at the end of the billing period, and Symprex deletes all related data when a subscription is terminated.
Key features
- Central dashboard
- All signatures and campaigns for the company are created, managed and monitored from one dashboard, with a template library to start from.
- Segmentation by department
- Each department, or individual users, can be given different branding, information and calls to action.
- Directory details
- Contact details and headshots are pulled from the directory, with social links and banners added to every signature.
- Campaigns and analytics
- Banner campaigns and surveys can be added to signatures, with tracking of clicks, impressions and conversions plus reports.
- Legal disclaimers
- Signatures and disclaimers can be created and assigned so that outgoing mail carries required legal text.
- Outlook add-in and mail routing
- Signatures reach mail either through an Outlook add-in or through email routed via the Signature 365 service, and the vendor says recipients are not prompted to download images.
Signature 365 pricing
As of Nov 13, 2026, Signature 365 is a paid product with a free trial, starting at $7.52 per month for 10 users, billed annually ($9.40 billed monthly).
- Starts at
- $7.52 per month for 10 users, billed annually ($9.40 billed monthly)
- Free plan
- None
- Free trial
- 14-day free trial, no commitment or credit card required
| Plan | Price | What you get |
|---|---|---|
| Signature 365 | $7.52per month for 10 users, billed annually ($9.40 billed monthly) | All features, priced by user count from 10 to 500 users. The page's calculator gives $816 a year for 100 users billed annually, or $85 a month billed monthly. |
| Over 500 users | Custom | Organizations above 500 users are asked to contact Symprex for pricing. |
Read from symprex.com on Nov 13, 2026. Prices change, so confirm with Signature 365 before you buy.
Ways to pay less
- Annual discountSave 20% with annual billing
The pricing page labels yearly billing as saving 20% compared with monthly billing.
Stated on symprex.com
Works with
- Microsoft 365
- Office 365
- Outlook
- Entra ID
Signature 365 alternatives
- Signature 365 vs Exclaimer
Free trial · from $0.90/mo
- Signature 365 vs CodeTwo
Free trial
- Signature 365 vs Letsignit
Free trial · from $2/mo
- Signature 365 vs Dynasend
Free trial · from $50/mo
- Signature 365 vs Opensense
Free trial · from $1/mo
Common questions
Does Signature 365 have an Android app?
No Android app was listed when its pages were read on Nov 13, 2026. Signature 365 is listed for Web.
Does Signature 365 have an iPhone app?
No iPhone app was listed when its pages were read on Nov 13, 2026. Signature 365 is listed for Web.
Is Signature 365 open source?
Signature 365 is not described as open source on its own site, as read on Nov 13, 2026.
Sources for this page
The prices, plans, platforms and features above were read from these pages on Nov 13, 2026.