diff --git a/go/internal/network/service.go b/go/internal/network/service.go
index a39efcf..861d29a 100644
--- a/go/internal/network/service.go
+++ b/go/internal/network/service.go
@@ -284,18 +284,20 @@ func (s *serviceImpl) AcceptInvitation(ctx context.Context, networkID, email, hu
 			}
 		}
 
-		newMemberEmailPrefix := strings.Split(normalized, "@")[0]
-		_, err = s.aeroSvc.ShootEmail(ctx, &pbaero.ShootEmailRequest{
-			ToEmails: emailRecipients,
-			Subject:  fmt.Sprintf("A new member has joined %s", network.Name),
-			TemplateData: &pbaero.ShootEmailRequest_SimpleHtmlData{
-				SimpleHtmlData: &pbaero.SimpleHtmlData{
-					Html: buildNewMemberHTML(network.Name, newMemberEmailPrefix),
+		if len(emailRecipients) > 0 {
+			newMemberEmailPrefix := strings.Split(normalized, "@")[0]
+			_, err = s.aeroSvc.ShootEmail(ctx, &pbaero.ShootEmailRequest{
+				ToEmails: emailRecipients,
+				Subject:  fmt.Sprintf("A new member has joined %s", network.Name),
+				TemplateData: &pbaero.ShootEmailRequest_SimpleHtmlData{
+					SimpleHtmlData: &pbaero.SimpleHtmlData{
+						Html: buildNewMemberHTML(network.Name, newMemberEmailPrefix),
+					},
 				},
-			},
-		})
-		if err != nil {
-			flog.Warn("unable to send email notification", "email", email, "network", network.Name)
+			})
+			if err != nil {
+				flog.Warn("unable to send email notification", "email", email, "network", network.Name)
+			}
 		}
 	}