Exclaimer is the best Outlook signature software for most Microsoft 365 teams, because Starter starts at $0.90 per user per month billed annually and syncs from Microsoft Entra ID. CodeTwo Email Signatures 365 is the best pick for Microsoft-only teams, starting at $1.22 per user per month billed annually for 10 users, with all features in one plan. Bybrand is the cheapest entry point for a small team, at $8 per month for up to 10 signatures, while Opensense has a $500 per month minimum that makes its $1 per user rate misleading for small teams.
Outlook on its own lets each person set a signature, and that is where the problems start. Titles go out of date, logos change size, and legal text is missed on some messages. A centrally managed tool fixes that by pulling names, titles, and phone numbers from the company directory and applying one approved design to every message. One fact that changes the choice is that the cheapest per-user rate is not always the cheapest bill, because minimums and base charges can set a floor far above the headline rate.
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What's the top outlook signature software: comparison table
Swipe the table sideways on a phone to see every column.
| # | Name | Best for | Starting price | Free plan / trial | Link |
|---|---|---|---|---|---|
| 1 | Exclaimer | Most Microsoft 365 teams | $0.90 per user/month | Free trial (14 days) | Visit |
| 2 | CodeTwo Email Signatures 365 | Microsoft-only teams | $1.22 per user/month | Free trial (14 days) | Visit |
| 3 | WiseStamp | Signature marketing for growing teams | $19 per month | Free trial (14 days) | Visit |
| 4 | Newoldstamp | Banner campaigns for small business | $1.80 per signature/month | Free trial (7 days) | Visit |
| 5 | Letsignit | Large teams with campaign control | $2 per user/month | Free trial (14 days) | Visit |
| 6 | Bybrand | Small teams and agencies | $8 per month for up to 10 signatures | Free trial (14 days) | Visit |
| 7 | Opensense | Large teams with CRM targeting | $1 per user/month | No | Visit |
| 8 | Crossware Mail Signature | Mixed Microsoft and Google environments | quote only | Free trial | Visit |
The 8 best what's the top outlook signature software tools, in detail
Exclaimer
Best for: Most Microsoft 365 teams
Exclaimer Starter costs $0.90 per user per month billed annually, Standard costs $1.45, and Pro costs $1.75, while Enterprise is custom priced. The 10-user minimum applies across the plans. Starter covers one team with one brand kit and one signature template, plus legal disclaimers and auto-updated details.
- Standard adds unlimited templates, signatures by department, scheduled banners, and three brand kits.
- Pro adds unlimited brands, engagement data, and HRIS data to fill directory gaps.
- Signatures can be applied server-side, in Outlook, or both, with a preview while composing.
- Teams that need a different design per department should start at Standard.
Pros
- Lowest headline per-user price here
- directory sync from Microsoft Entra ID
- server-side and client-side deployment
Cons
- Starter allows only 1 signature template
- 10-user minimum means a 10-user team pays at least $9 per month
CodeTwo Email Signatures 365
Best for: Microsoft-only teams
CodeTwo sells one plan with all features included, and the price depends on seat count and billing period. For 10 users, the yearly subscription costs $1.22 per user per month, while the monthly subscription costs $1.36. At 100 users, the yearly rate falls to $1.11, and at 500 users it falls to $0.73.
- The minimum is 10 licenses, and the yearly subscription saves around 10 percent a year.
- The 14-day trial can be extended to 21 days.
- Signatures can be added in the cloud, directly in Outlook through the CodeTwo Outlook add-in, or in a combo mode that uses both.
- The service also covers legal disclaimers, automatic replies, marketing banners, QR codes, and vCards, with support included.
Pros
- One plan with all features included
- Outlook add-in shows the signature while typing
- 14-day trial can extend to 21 days
Cons
- Microsoft 365 only, with no Google Workspace support
- price varies by seat count, so small teams pay the highest rate
WiseStamp
Best for: Signature marketing for growing teams
WiseStamp Basic starts at $19 per month plus $1 per user billed annually, Grow starts at $49 plus $1 per user, and Platform starts at $189 plus $1 per user. A Pro+ plan starts at $9 per month. That model means a 50-user team on Basic pays $69 per month, not $19, and a 100-user team pays $119.
- Check the total for your headcount before you compare WiseStamp with a flat per-user tool.
- WiseStamp covers Office 365, Google Workspace, and Exchange, with client-side, server-side, or hybrid deployment.
- The editor includes an AI designer, templates, dark mode preview, and campaign scheduling.
- Higher plans add automation, role-based access, and audit logs.
Pros
- AI signature designer and drag-and-drop editor
- supports Microsoft 365, Google Workspace, and Exchange
- SAML sign-in on higher plans
Cons
- Base charge plus a per-user charge makes the total harder to compare
- legal disclaimers and audit logs sit on higher plans
Newoldstamp
Best for: Banner campaigns for small business
Newoldstamp prices by signature, not by user. For 5 signatures, the annual total is $109, which works out at $1.80 per signature per month. For 50 signatures, the annual total is $799, and for 100 it is $1,599.
- A custom plan applies above 200 signatures.
- The 7-day trial gives full access, but signatures cannot be used until the account is upgraded.
- The platform includes a signature generator, central management, banner campaigns, scheduling, segmentation, and analytics.
- It integrates with Google Workspace and Microsoft 365, plus HubSpot and Salesforce.
Pros
- Banner campaigns with scheduling and analytics
- central management for Microsoft 365 and Google Workspace
- 5-signature package at $109 per year
Cons
- Price is per signature, not per user, so extra mailboxes add cost
- 7-day trial is shorter than the 14-day trials in this list
Letsignit
Best for: Large teams with campaign control
Letsignit charges $2 per user per month for email signatures and vCards, $2 for Slides, and $2 for the full Platform plan that combines both. Enterprise is custom priced and adds governance, roles and permissions, multi-directory sync, and a dedicated project team. Plans are annual subscriptions, and new users added during a term are billed pro rata.
- Special pricing applies for nonprofits.
- Signatures deploy through a native Outlook add-in and through Microsoft 365, Google Workspace, and Exchange, so users can preview a signature before s
- Campaigns support targeting, A/B testing, and dynamic polls, and digital business cards go to Apple and Android wallets.
- Choose Letsignit when marketing wants campaign control and IT wants directory sync and governance in one place.
Pros
- Same $2 rate covers signatures, vCards, and Slides
- native Outlook add-in
- ISO 27001 and ISO 27018 certification
Cons
- Plans are annual subscriptions, with no monthly billing option stated
- Enterprise governance features need a custom quote
Bybrand
Best for: Small teams and agencies
Bybrand Base costs $8 per month billed monthly and includes up to 10 email signatures created manually, with full editor access, templates, image hosting, version history, and team access for up to 5 users. Extra manual signatures cost $0.80 each per month, and automation costs $0.50 per synced employee. That gives a clear total: 20 signatures cost $16 per month, 30 automated signatures cost $23, 50 cost $33, and 100 cost $58.
- Bybrand imports employees from Microsoft Entra ID, Google Workspace, Zoho CRM, Google Sheets, and CSV files, and it deploys signatures through the Out
- The 14-day trial needs no credit card.
- Bybrand suits a small team or an agency that wants monthly billing without a long contract.
Pros
- Lowest monthly entry cost here at $8 per month
- billed monthly with no annual commitment stated
- $0.50 per synced employee for automation
Cons
- No campaign analytics at the depth of the larger tools
- automation cost rises with headcount, so large teams pay more than the base price suggests
Opensense
Best for: Large teams with CRM targeting
Opensense Signature costs $1 per user per month, Pipeline costs $3, and Complete costs $5, and every plan carries a $500 per month minimum. That minimum is the key number here, because a 20-user team on Signature pays $500 per month, not $20, and a 100-user team also pays $500, not $100. Microsoft 365 GCC High adds $2 per user per month.
- Signature covers central management, deployment on all devices, department signatures, and directory integration.
- Pipeline adds scheduled banner campaigns, A/B testing, and CRM account targeting.
- Complete adds CRM stage and recipient targeting and sales tool integrations.
- Opensense suits a large company that wants signatures tied to CRM data.
Pros
- CRM targeting by account, stage, and recipient on Complete
- patented in-client signature previews
- Microsoft 365 GCC High support at $2 extra per user per month
Cons
- $500 per month minimum applies to every plan, so small teams pay the floor
- banners and directory sync need Pipeline or Complete
Crossware Mail Signature
Best for: Mixed Microsoft and Google environments
Crossware Mail Signature does not publish a price on its official site, so the starting price here is quote only. Third-party listings show about $1 per user per month, but that figure is not on the official Crossware page opened today, so it is not used here. Ask Crossware for a quote that states the per-user rate, the minimum team size, and any setup charges before you budget.
- Licensing is per user, where a user is any mailbox that needs a signature.
- Crossware supports Microsoft 365, Google Workspace, Microsoft Exchange, and HCL Domino, a wider mix than most tools here.
- Admins manage templates, images, disclaimers, and banners from one dashboard, with rules for internal and external mail, new mail and replies, and dat
- Signatures can be previewed in Outlook and seen in Sent Items.
Pros
- Covers Microsoft 365, Google Workspace, Exchange, and HCL Domino
- signatures visible in Outlook and in Sent Items
- per-user licensing by mailbox
Cons
- No published price on the official site, so budgeting needs a quote
- no published plan tiers to compare feature limits
How we chose
We chose tools that centrally manage email signatures for Outlook and Microsoft 365, with directory sync or central deployment, a published price or a clear quote route, and support for Outlook desktop, web, or mobile. Prices and plan limits come from official vendor pricing pages opened on 2026-11-12, and each item cites its official page in Sources. We did not test any tool hands-on. We ranked the default pick on entry price, Microsoft 365 fit, template limits, and minimum team size. Where a vendor hid the price, we wrote quote only.
Which tool fits your team size and budget
| Team size | Cheapest monthly total in this list | What to note |
|---|---|---|
| 10 users | Bybrand $8 per month | Exclaimer Starter is $9 per month for 10 users, CodeTwo is $12.20 per month, and Opensense is $500 per month because of its floor |
| 50 users | Bybrand $33 per month | Exclaimer Starter is $45 per month, CodeTwo is $60.50 per month, Newoldstamp is $799 per year for 50 signatures, and Letsignit is $100 per month |
| 100 users | Bybrand $58 per month | Exclaimer Starter is $90 per month, CodeTwo is $111 per month, WiseStamp Basic is $119 per month, and Opensense is still $500 per month |
| 500 users | CodeTwo $365 per month | CodeTwo falls to $0.73 per user per month at 500 users, Exclaimer Starter is $450 per month, and Opensense Signature reaches its $500 floor at 500 users |
Bybrand wins on monthly total at 10, 50, and 100 users, but it does not offer the campaign and CRM controls that Opensense and Letsignit provide. CodeTwo becomes the cheapest per-user option at 500 users, while Exclaimer stays the simplest choice for a Microsoft 365 team on Standard at $1.45 per user per month.
Frequently asked questions
What's the top Outlook signature software for most teams?
Exclaimer is the best pick for most Microsoft 365 teams. Starter starts at $0.90 per user per month billed annually, with a 10-user minimum, directory sync from Microsoft Entra ID, and server-side and client-side deployment. Teams that need a different design per department should move to Standard at $1.45, which adds unlimited templates and scheduled banners.
How much does Outlook signature software cost?
Entry prices run from $8 per month for Bybrand with up to 10 signatures to $2 per user per month for Letsignit and $0.90 for Exclaimer Starter billed annually. Opensense starts at $1 per user per month but carries a $500 per month minimum, so a small team pays $500 per month. Always model the total for your headcount, not just the headline rate.
Can Outlook signature software work on mobile and web?
Yes, when the tool supports server-side deployment or an Outlook add-in. Exclaimer, CodeTwo, WiseStamp, and Crossware state that signatures apply across devices, including mobile, and CodeTwo adds signatures in Outlook as users type. Test a message from Outlook web, desktop, and a phone before you roll out.
Do I need server-side or client-side signatures?
Server-side signatures work for every device and mail app, because the signature is added as mail passes through the server, but the sender may not see it while composing. Client-side signatures appear in Outlook while typing, but they depend on the Outlook add-in. Many teams use both, as Exclaimer and CodeTwo allow, so mobile mail is covered and desktop users still see a preview.
Is there a free Outlook signature manager in this list?
No tool in this list offers a permanent free plan, and most offer a trial instead. Exclaimer, CodeTwo, WiseStamp, Letsignit, and Bybrand offer a 14-day trial, Newoldstamp offers a 7-day trial, Crossware offers a trial with no duration stated, and Opensense asks for a demo. Bybrand at $8 per month is the lowest entry cost after the trial ends.
Which tool is best for a small team under 10 people?
Bybrand is the best fit for a team under 10 people, because the Base plan costs $8 per month billed monthly and includes up to 10 signatures, with no 10-user minimum stated. Exclaimer and CodeTwo both need at least 10 users, so a 5-person team would pay for 10 seats. Newoldstamp is another option for 5 signatures at $109 per year, if banner campaigns matter more.
Sources
- https://exclaimer.com/
- https://exclaimer.com/pricing/
- https://www.codetwo.com/
- https://codetwo.com/email-signatures/pricing
- https://www.wisestamp.com/
- https://newoldstamp.com/
- https://newoldstamp.com/pricing/
- https://letsignit.com/
- https://letsignit.com/pricing
- https://www.bybrand.io/
- https://www.bybrand.io/pricing
- https://www.opensense.com/
- https://www.opensense.com/pricing
- https://www.crossware365.com/
Prices and features were read on each company’s own website in November 2026. They change often, so confirm the current offer on the official site before you sign up or buy.