The Signature 365 Insider’s Guide
Everything we know about Signature 365 in one document: what it costs, its grades, getting a refund, getting help and what else to look at. Read it here, or keep a copy.
Signature 365
The Insider’s Guide
Cloud email signatures and campaigns for Microsoft 365
Every plan, grade, refund rule and rival among email signature tools, read from Signature 365’s own pages.
Made by Symprex · checked Nov 13, 2026 · toolgpa.com
Contents
- 01WelcomeWhat it is, who it suits, its grades and the ten things to know first
- 02What it costsEvery plan, the free plan, ways to pay less and how prices have moved
- 03What it doesIts main features, where it runs, what it works with and who makes it
- 04Where it standsIts grades against its category, and whether to keep it or make your own
- 05The alternativesThe tools it is most often weighed against, side by side
- 06Quick answersThe questions people ask about it, each answered in a line or two
- 07About ToolGPAWho made this guide, what else is on the site, and how to cite it
ToolGPA put this guide together from Signature 365’s own pages, its app-store listings and our grades. Every fact in it is on Signature 365’s page too, where it is kept up to date. Checked Nov 13, 2026.
Part 01 · Overview
Welcome
What it is, who it suits, its grades and the ten things to know first
2.0
GPA, above 3 of the 22 other email signature tools we grade
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.
To get you started, here are 9 things to know about Signature 365, taken from its own pages and our grades.
You connect Entra ID, build templates and deploy the add-in.
- 1
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.
- 2
Paid plans start at $7.52 a month
As its pricing page puts it: $7.52 per month for 10 users, billed annually ($9.40 billed monthly).
- 3
You can try it first
14-day free trial, no commitment or credit card required
- 4
It runs on Web
Web.
- 5
Central dashboard
All signatures and campaigns for the company are created, managed and monitored from one dashboard, with a template library to start from.
- 6
Segmentation by department
Each department, or individual users, can be given different branding, information and calls to action.
- 7
Directory details
Contact details and headshots are pulled from the directory, with social links and banners added to every signature.
- 8
A 2.0 GPA, above 3 of 22
That is against the other email signature tools we grade, on value, the free plan, features, ease of use and platforms.
- 9
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.
Signature 365 at a glance
- Pricing
- Free trial, from $7.52 per month for 10 users, billed annually ($9.40 billed monthly)
- Free plan
- No
- Free trial
- 14-day free trial, no commitment or credit card required
- Runs on
- Web
- Made by
- Symprex
- Category
- Email Signature Tools
- Our grade
- 2.0 GPA, fair
The report card
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.
| Subject | Grade | Comment |
|---|---|---|
| Value for money | C | $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. |
| Free plan and trial | C | A 14-day trial with no card or commitment, then nothing free. |
| Features | C | Central dashboard, segmentation, directory details, campaigns, analytics, disclaimers and an Outlook add-in. It covers Microsoft 365 only, with no Google Workspace. |
| Ease of use | C | No rating on record. You connect Entra ID, build templates and deploy the add-in. |
| Platforms and integrations | C | Web dashboard and Outlook add-in for Microsoft 365 only. |
An A is worth 4 points, a B 3, a C 2, a D 1 and an F nothing. The GPA is the average of the five.
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 it 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
Good to know
Good for
- Microsoft 365 organizations that want a hosted signature service
- Teams of 10 to 500 users that prefer a single price list
- Companies that need regional data hosting and ISO 27001 or SOC 2 certification
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.
Part 02 · Pricing
What it costs
Every plan, the free plan, ways to pay less and how prices have moved
$7.52
A month to start
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).
Signature 365
$7.52
per 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.
Trying it first
14-day free trial, no commitment or credit card required
Read from symprex.com on Nov 13, 2026.
Ways to pay less
Annual discount
Save 20% with annual billing
The pricing page labels yearly billing as saving 20% compared with monthly billing.
Stated on symprex.com
Part 03 · Features
What it does
Its main features, where it runs, what it works with and who makes it
1
Place it runs: Web
Cloud email signatures and campaigns for Microsoft 365. Here is what it does, as its own site describes it, and what it covers: marketing automation, reports, email signature.
Central dashboard, segmentation, directory details, campaigns, analytics, disclaimers and an Outlook add-in.
- 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.
Where it runs
- Web
What it works with
- Microsoft 365
- Office 365
- Outlook
- Entra ID
Signature 365 is made by Symprex.
Part 04 · Standing
Where it stands
Its grades against its category, and whether to keep it or make your own
3/22
Other email signature tools it is graded above
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
- CFree plan and trialAbove 6 of 22
- CFeaturesAbove 0 of 22
- CEase of useAbove 0 of 22
- CPlatforms and integrationsAbove 0 of 22
Price against what you get
Each dot is one of 19 email signature tools. Further left costs less; higher up scores better on features, ease of use and platforms. Signature 365 is the marked dot.
What paid plans start at, a month (each step along is roughly double) →
Keep it, or make your own?
Whether this is something you could build for yourself with an AI app builder, and what you would give up.
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.
Part 05 · Alternatives
The alternatives
The tools it is most often weighed against, side by side
Exclaimer, CodeTwo, Letsignit, Dynasend and Opensense
The 5 tools Signature 365 is most often weighed against, with where each one differs from it.
- 2.6GPA
Exclaimer
Free trial · from $0.90/mo
Company-wide email signatures for Microsoft 365 and Google Workspace.
- Signature 365 also covers marketing automation.
- Exclaimer also covers templates, qR codes and a/B testing.
- 2.0GPA
CodeTwo
Free trial
Email signatures, disclaimers and autoreplies for Microsoft 365.
- Signature 365 also covers marketing automation and reports.
- CodeTwo also covers templates and surveys.
- 2.6GPA
Letsignit
Free trial · from $2/mo
Managed email signatures, banner campaigns and digital business cards.
- Signature 365 also covers marketing automation and reports.
- Letsignit also covers templates, surveys, digital business card and a/B testing.
- 1.6GPA
Dynasend
Free trial · from $50/mo
Full-service email signature management for Microsoft 365.
- Signature 365 also covers reports.
- Dynasend also covers digital business card.
- 2.2GPA
Opensense
Free trial · from $1/mo
Enterprise email signatures with CRM-targeted banners and tracking.
- Signature 365 also covers marketing automation.
- Opensense also covers digital business card and a/B testing.
Part 06 · Questions
Quick answers
The questions people ask about it, each answered in a line or two
13
Questions, each answered in a line or two
The short version of everything above, for when you only need the answer. Each one is told in full in its part of the guide.
Is Signature 365 free?
No, Signature 365 is a paid product, but you can try it first. 14-day free trial, no commitment or credit card required.
How much does Signature 365 cost?
Signature 365 lists 2 plans. Signature 365: $7.52 per month for 10 users, billed annually ($9.40 billed monthly).
What platforms does Signature 365 work on?
Signature 365 is available on Web.
Does Signature 365 offer any discounts?
Signature 365 publicly lists the following: Save 20% with annual billing.
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.
What does Signature 365 integrate with?
Signature 365's listing names Microsoft 365, Office 365, Outlook and Entra ID.
Who makes Signature 365?
Signature 365 is made by Symprex.
What are the alternatives to Signature 365?
The closest alternatives to Signature 365 in our directory are Exclaimer, CodeTwo, Letsignit, Dynasend and Opensense.
How does Signature 365 compare with other 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.
Is Signature 365 good value for money?
ToolGPA grades Signature 365 C for value for money. On features, ease of use and platforms it scores 2.0 out of 4.
Could I make my own version of Signature 365?
To replace Signature 365 you would be making email sent in volume that still reaches the inbox.
Where this guide comes from
The prices, plans, platforms and features were read from Signature 365’s own pages on Nov 13, 2026, and the grades were given on Nov 13, 2026. 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.
Every tool we list gets five grades, A to F, each with its reason, and a GPA that averages them. How each is decided is at toolgpa.com/grades. This guide is ToolGPA’s own work; it is not made, paid for or approved by Symprex. Prices change, so check symprex.com before you buy.
Part 07 · About
About ToolGPA
Who made this guide, what else is on the site, and how to cite it
7,721
Tools graded, in 95 categories
ToolGPA grades software the way a school report grades a pupil: five subjects, a letter for each with the reason written beside it, and a GPA that averages them. Prices, plans and platforms are read from each maker’s own pages and dated, so you always know how fresh a figure is.
Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Every tool on the site has a guide like this one, free to download and pass on. It all lives at toolgpa.com.
7,721
tools graded
95
categories
739
price changes on record
579
apps priced in 12 countries
What else is on toolgpa.com
- Signature 365, kept up to dateEverything in this guide, with prices and grades as they are todaytoolgpa.com/tools/signature-365
- How grades are givenThe rules behind every letter and every GPAtoolgpa.com/grades
- Value chartsWhat each tool costs against what it scores, for every categorytoolgpa.com/charts
- CompareAny two tools side by side, plan by plantoolgpa.com/compare
- Price changesEvery price rise and cut on record, each with its sourcetoolgpa.com/price-changes
- Prices by countryWhat apps cost on the App Store in 12 countriestoolgpa.com/prices-by-country
- Pay lessEvery public discount: yearly billing, students, nonprofitstoolgpa.com/save
- Keep or makeWhich tools are worth paying for, and which you could build yourselftoolgpa.com/keep-or-make
Scan for the live page
Prices and grades as they are today
Quoting this guide?
Please name ToolGPA and link to the live page, so readers can check the figures for themselves:
ToolGPA, "Signature 365: The Insider's Guide", checked Nov 13, 2026. https://toolgpa.com/tools/signature-365
Know someone choosing between email signature tools?
Send them this guide: toolgpa.com/tools/signature-365/guide
ToolGPA elsewhere: youtube.com/@toolgpa
See our other guides
The best-graded email signature tools after Signature 365, each with an Insider's Guide of its own.
- Email Signature Tools Insider's GuideEvery one of the 23 email signature tools we grade, compared
- Exclaimer Insider's GuideCompany-wide email signatures for Microsoft 365 and Google Workspace2.6 GPA
- Letsignit Insider's GuideManaged email signatures, banner campaigns and digital business cards2.6 GPA
- Newoldstamp Insider's GuideEmail signatures priced by the number of signatures, with banners2.6 GPA
Choosing software? Every tool graded, every price dated.
Compare tools at toolgpa.com ›Everything in this guide is ToolGPA’s own summary of what Signature 365’s pages, its app-store listings and public reviews said on the dates shown. Grades are our judgement under the rules at toolgpa.com/grades. Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Signature 365 is a trademark of its owner, and this guide is not made, paid for or approved by Symprex. Prices and plans change: check symprex.com before you buy.