diff --git a/backend/src/graphql/resolver/UserResolver.ts b/backend/src/graphql/resolver/UserResolver.ts
index fb9c18563..2612407bf 100644
--- a/backend/src/graphql/resolver/UserResolver.ts
+++ b/backend/src/graphql/resolver/UserResolver.ts
@@ -408,6 +408,7 @@ export class UserResolver {
   @Authorized([RIGHTS.SEND_ACTIVATION_EMAIL])
   @Mutation(() => Boolean)
   async sendActivationEmail(@Arg('email') email: string): Promise<boolean> {
+    email = email.trim().toLowerCase()
     const user = await DbUser.findOneOrFail({ email: email })
 
     const queryRunner = getConnection().createQueryRunner()
@@ -448,7 +449,7 @@ export class UserResolver {
   @Query(() => Boolean)
   async sendResetPasswordEmail(@Arg('email') email: string): Promise<boolean> {
     // TODO: this has duplicate code with createUser
-
+    email = email.trim().toLowerCase()
     const user = await DbUser.findOneOrFail({ email })
 
     const optInCode = await getOptInCode(user.id)