diff --git a/object/verification.go b/object/verification.go
index 69a0a6ec..96b262c6 100644
--- a/object/verification.go
+++ b/object/verification.go
@@ -47,7 +47,7 @@ func SendVerificationCodeToEmail(organization *Organization, user *User, provide
 
 	sender := organization.DisplayName
 	title := provider.Title
-	code := getRandomCode(5)
+	code := getRandomCode(6)
 	// "You have requested a verification code at Casdoor. Here is your code: %s, please enter in 5 minutes."
 	content := fmt.Sprintf(provider.Content, code)
 
@@ -63,7 +63,7 @@ func SendVerificationCodeToPhone(organization *Organization, user *User, provide
 		return errors.New("please set a SMS provider first")
 	}
 
-	code := getRandomCode(5)
+	code := getRandomCode(6)
 	if err := SendSms(provider, code, dest); err != nil {
 		return err
 	}
diff --git a/web/src/ProviderEditPage.js b/web/src/ProviderEditPage.js
index 359a650d..2ca02066 100644
--- a/web/src/ProviderEditPage.js
+++ b/web/src/ProviderEditPage.js
@@ -541,7 +541,7 @@ class ProviderEditPage extends React.Component {
                   {Setting.getLabel(i18next.t("provider:Email Content"), i18next.t("provider:Email Content - Tooltip"))} :
                 </Col>
                 <Col span={22} >
-                  <TextArea autoSize={{minRows: 1, maxRows: 100}} value={this.state.provider.content} onChange={e => {
+                  <TextArea autoSize={{minRows: 3, maxRows: 100}} value={this.state.provider.content} onChange={e => {
                     this.updateProviderField("content", e.target.value);
                   }} />
                 </Col>