# Email signature management: what AI models recommend, November 2026 Gane Index, November 2026 Edition. Asked as "email signature management tool" and as "centralized company email signature software", six framings each, to fourteen models with search on, on behalf of a mid-market B2B company. Added to the November 2026 Edition. Page: https://www.gane.ai/index/gtm/marketing/email-signature-management **Standing:** Exclaimer leads with 31% of first choices; verdict contested. 49 first choices across the direct, paraphrase, budget and scale prompts. ## First-choice share | Rank | Product | Share | Negative rate | Labels | |---|---|---|---|---| | 1 | [Exclaimer](https://www.gane.ai/index/gtm/vendors/exclaimer/index.md) | 31% | 17% | 63 | | 2 | [WiseStamp](https://www.gane.ai/index/gtm/vendors/wisestamp/index.md) | 27% | 20% | 51 | | 3 | [CodeTwo Email Signatures 365](https://www.gane.ai/index/gtm/vendors/codetwo-email-signatures-365/index.md) | 24% | 7% | 67 | | 5 | [MySignature](https://www.gane.ai/index/gtm/vendors/mysignature/index.md) | 2% | 19% | 16 | | 6 | [Signitic](https://www.gane.ai/index/gtm/vendors/signitic/index.md) | 2% | 14% | 14 | | 7 | [BulkSignature](https://www.gane.ai/index/gtm/vendors/bulksignature/index.md) | 2% | 18% | 11 | | 12 | [Opensense](https://www.gane.ai/index/gtm/vendors/opensense/index.md) | 0% | 8% | 26 | | 13 | [Newoldstamp](https://www.gane.ai/index/gtm/vendors/newoldstamp/index.md) | 0% | 19% | 21 | | 14 | [Letsignit](https://www.gane.ai/index/gtm/vendors/letsignit/index.md) | 0% | 22% | 18 | | 25 | [Rocketseed](https://www.gane.ai/index/gtm/vendors/rocketseed/index.md) | 0% | 27% | 11 | | 40 | [Bybrand](https://www.gane.ai/index/gtm/vendors/bybrand/index.md) | 0% | 36% | 11 | Rank is by share of first choices among all 48 products named; products with the same share are tied, and the order among them carries no meaning. The table lists those with at least 10 labels. ## Each model's first choice on the direct prompt - Claude Haiku 4.5: Exclaimer; alternatives CodeTwo Email Signatures 365, Letsignit, Opensense - GPT-5.4 mini: Exclaimer; alternatives CodeTwo Email Signatures 365, Opensense - Gemini 3.5 Flash: CodeTwo Email Signatures 365; alternatives Exclaimer, Opensense, WiseStamp for Teams - Perplexity Sonar: WiseStamp; alternatives CodeTwo Email Signatures 365, Exclaimer - Grok 4.20: WiseStamp; alternatives CodeTwo Email Signatures 365, Exclaimer, Signitic - Mistral Small: Exclaimer, WiseStamp - DeepSeek V4 Flash: Exclaimer; alternatives CodeTwo Email Signatures 365, WiseStamp - Llama 4 Maverick: WiseStamp - Qwen 3.7 Flash: WiseStamp; alternatives Exclaimer, Letsignit, Opensense - Kimi K2: WiseStamp; alternatives CodeTwo Email Signatures 365 - GLM 4.7 FlashX: WiseStamp; alternatives CodeTwo Email Signatures 365, Exclaimer, SyncSignature - MiniMax M2.5: Exclaimer, WiseStamp; alternatives Bybrand, CodeTwo Email Signatures 365 - GPT-6 Luna: Exclaimer; alternatives CodeTwo Email Signatures 365, Opensense - Muse Glimmer 30B: Exclaimer, WiseStamp; alternatives CodeTwo Email Signatures 365, Signitic ## Sources the answers cite 75 of 84 answers came back with a source list, from 14 of 14 models. Sites named in the most answers: - wisestamp.com: 54 answers, 126 citations - capterra.com: 37 answers, 69 citations - softwareadvice.com: 34 answers, 44 citations - signitic.com: 29 answers, 41 citations - getapp.com: 28 answers, 42 citations - g2.com: 27 answers, 50 citations - exclaimer.com: 25 answers, 40 citations - syncsignature.com: 24 answers, 30 citations Pages named in the most answers: - https://wisestamp.com/guides/best-email-signature-management-software (29 answers) - https://capterra.com/email-signature-software (27 answers) - https://signitic.com/en/resources/the-ultimate-guide-to-email-signature-software-in-2025 (20 answers) - https://softwareadvice.com/email-signature (20 answers) - https://geekflare.com/guides/best-email-signature-software (19 answers) - https://wisestamp.com/ (16 answers) - https://wisestamp.com/guides/best-office-365-email-signature-software (16 answers) - https://wisestamp.com/guides/how-to-choose-email-signature-management-software-it-guide (14 answers) - https://getapp.com/it-communications-software/email-signature/org/mid-size-business (13 answers) - https://getapp.co.uk/directory/1149/email-signature/software (12 answers) ## Warned against - Exclaimer: 11 of 63 labels negative. "tools that should be avoided or used with caution. Some of the tools mentioned include WiseStamp, Exclaimer, and Microsoft 365/Google Workspace native tools." (Llama 4 Maverick, negative prompt) - WiseStamp: 10 of 51 labels negative. "tools that should be avoided or used with caution. Some of the tools mentioned include WiseStamp, Exclaimer, and Microsoft 365/Google Workspace native tools." (Llama 4 Maverick, negative prompt) - CodeTwo Email Signatures 365: 5 of 67 labels negative. "CodeTwo and Letsignit are designed for Microsoft ecosystems, so Google Workspace organizations should generally avoid them." (Perplexity Sonar, negative prompt) - Letsignit: 4 of 18 labels negative. "CodeTwo and Letsignit are designed for Microsoft ecosystems, so Google Workspace organizations should generally avoid them." (Perplexity Sonar, negative prompt) ## Movement since October 2026 Floor: 11 points of share, measured on the calibration repeat. Same leader: Exclaimer at 31%. - CodeTwo Email Signatures 365: 8% to 24%, +16. Cleared the floor by 5 points · rank 4 → 3 of 48. - Signitic: 14% to 2%, −12. Cleared the floor by 1 point · rank 3 → 6 of 48. - BulkSignature: 6% to 2%, −4. Inside the floor by 7 points · rank 5 → 7 of 48. - WiseStamp: 24% to 27%, +3. Inside the floor by 8 points · rank 2 of 48, unchanged. - Exclaimer: 33% to 31%, −2. Inside the floor by 9 points · rank 1 of 48, unchanged. - Newoldstamp: 2% to 0%, −2. Inside the floor by 9 points · rank 8 → 13 of 48. - Bybrand: 2% to 0%, −2. Inside the floor by 9 points · rank 10 → 40 of 48. - SyncSignature: 4% to 4%, ±0. Inside the floor by 11 points · rank 6 → 4 of 48. - MySignature: 2% to 2%, ±0. Inside the floor by 11 points · rank 9 → 5 of 48. - Opensense: 0% to 0%, ±0. Inside the floor by 11 points · rank 12 of 48, unchanged. - Letsignit: 0% to 0%, ±0. Inside the floor by 11 points · rank 13 → 14 of 48. - Rocketseed: 0% to 0%, ±0. Inside the floor by 11 points · rank 14 → 25 of 48. ## Record - Method: https://www.gane.ai/index/gtm/methodology - License: CC BY 4.0. Cite as Gane Index, November 2026 Edition, www.gane.ai/index/gtm.