diff --git a/auth/email_link/email_modify.go b/auth/email_link/email_modify.go
index 2936bee4..412ed315 100644
--- a/auth/email_link/email_modify.go
+++ b/auth/email_link/email_modify.go
@@ -129,7 +129,7 @@ func (c *client) sendNotifyEmailChanged(ctx context.Context, notifyEmail, newEma
 	}{
 		AppName: c.cfg.AppName,
 	}
-	lbIdx := atomic.AddUint64(&c.emailClientLBIndex, 1) % uint64(c.cfg.ExtraLoadBalancersCount)
+	lbIdx := atomic.AddUint64(&c.emailClientLBIndex, 1) % uint64(c.cfg.ExtraLoadBalancersCount+1)
 
 	return errors.Wrapf(c.emailClients[lbIdx].Send(ctx, &email.Parcel{
 		Body: &email.Body{
diff --git a/auth/email_link/emaillink.go b/auth/email_link/emaillink.go
index 1a270ae7..706852fe 100644
--- a/auth/email_link/emaillink.go
+++ b/auth/email_link/emaillink.go
@@ -40,8 +40,8 @@ func NewClient(ctx context.Context, userModifier UserModifier, authClient auth.C
 		db:             db,
 		authClient:     authClient,
 		userModifier:   userModifier,
-		emailClients:   make([]email.Client, 0, cfg.ExtraLoadBalancersCount),
-		fromRecipients: make([]fromRecipient, 0, cfg.ExtraLoadBalancersCount),
+		emailClients:   make([]email.Client, 0, cfg.ExtraLoadBalancersCount+1),
+		fromRecipients: make([]fromRecipient, 0, cfg.ExtraLoadBalancersCount+1),
 	}
 	if !cfg.DisableEmailSending {
 		cl.emailClients = append(cl.emailClients, email.New(applicationYamlKey))
diff --git a/auth/email_link/link_start_auth.go b/auth/email_link/link_start_auth.go
index 27613a61..99c0c057 100644
--- a/auth/email_link/link_start_auth.go
+++ b/auth/email_link/link_start_auth.go
@@ -185,7 +185,7 @@ func (c *client) sendEmailWithType(ctx context.Context, emailType, toEmail, lang
 	}{
 		AppName: c.cfg.AppName,
 	}
-	lbIdx := atomic.AddUint64(&c.emailClientLBIndex, 1) % uint64(c.cfg.ExtraLoadBalancersCount)
+	lbIdx := atomic.AddUint64(&c.emailClientLBIndex, 1) % uint64(c.cfg.ExtraLoadBalancersCount+1)
 
 	return errors.Wrapf(c.emailClients[lbIdx].Send(ctx, &email.Parcel{
 		Body: &email.Body{