When you use custom forms or email templates, Outlook will add a signature to the form, if one is assigned to your email account. You can prevent this by adding a key to the registry. This key is an all-or-nothing deal – you can’t apply it to some custom forms and not others.
If you want a signature on some forms but not others, your choices are:
- Set the registry value and add a signature to the template or form before saving the template or custom form
- Set the registry value and insert a signature when you use the form
- Don’t use the registry value and delete the signature from the form each time.
Edit the Registry
This registry key works in Outlook 2002, 2003, 2007, and 2010. If you don’t want to edit the registry, a ready-to-run reg file is listed below.
- Open the registry editor by typing regedit into the Start menu’s Search field (Windows 7 & Vista) or by press Windows key + R on your keyboard (all versions of Windows).
- Browse to the HKEY_CURRENT_USER\Software\Microsoft\Office\xx.0\Outlook\Options key in the registry
- Right click on the Options key and choose Add > DWORD
- Type or paste NoAutosigOnCustomForms as the name
- Double click on NoAutosigOnCustomForms and enter a value of 1 if you don’t want the autosignature added.
You’ll need to restart Outlook for the change to take effect.
Outlook 2010
HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Outlook\Options DWORD: NoAutosigOnCustomForms Data Value: 1 = no signature; 0 = uses signature (the default)
Outlook 2007
HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\Outlook\Options DWORD: NoAutosigOnCustomForms Data Value: 1 = no signature; 0 = uses signature (the default)
Outlook 2003
HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Outlook\Options DWORD: NoAutosigOnCustomForms Data Value: 1 = no signature; 0 = uses signature (the default)
Outlook 2002
HKEY_CURRENT_USER\Software\Microsoft\Office\10.0\Outlook\Options DWORD: NoAutosigOnCustomForms Data Value: 1 = no signature; 0 = uses signature (the default)
To restore the default behavior of adding a signature to custom forms and templates, delete NoAutosigOnCustomForms from the registry or change the value to 0.
Do it for me
If you don’t want to edit the registry yourself, you can download one of the *reg file for your version and run it.
Outlook 2002(XP)
Outlook 2003
Outlook 2007
Outlook 2010
To restore the default behavior of adding a signature, open the downloaded *.reg file using Notepad and change the 1 to a 0 then save and double click to run the *.reg.
No signature: “NoAutosigOnCustomForms”=dword:00000001
Signature: “NoAutosigOnCustomForms”=dword:00000000
Delete value: “NoAutosigOnCustomForms”=-
More Information
Tip 366: Signatures on Custom Forms (Daily tips, 8/3/2006)
Multiple signatures added on a custom multi-page form in Outlook 2003 (MSKB)
Outlook Quick Tip: Signatures on templates and custom forms (EMO, April 29, 2010)


