laravelでアカウント作成機能を実装中にRFC違反のメールアドレスとエラーが出ました。

Address in mailbox given [<3213.kotaro.basketball@gmail.com>] does not comply with RFC 2822, 3.6.2.

private function assertValidAddress($address)

    {

        if (!$this->emailValidator->isValid($address, new RFCValidation())) {

            throw new Swift_RfcComplianceException('Address in mailbox given ['.$address.'] does not comply with RFC 2822, 3.6.2.');

        }

    }

APP_NAME=Laravel
APP_ENV=local
APP_KEY=base64:u/dKxLF1vCSULCDa/yT3X4BN+/Lgb3gDgHaVCKUM4dI=
APP_DEBUG=true
APP_URL=http://localhost

LOG_CHANNEL=stack

DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=laravel
DB_USERNAME=root
DB_PASSWORD=

BROADCAST_DRIVER=log
CACHE_DRIVER=file
QUEUE_CONNECTION=sync
SESSION_DRIVER=file
SESSION_LIFETIME=120

REDIS_HOST=127.0.0.1
REDIS_PASSWORD=null
REDIS_PORT=6379

MAIL_DRIVER=smtp
MAIL_HOST=smtp.gmail.com
MAIL_PORT=587
MAIL_USERNAME=<3213.kotaro.basketball@gmail.com>
MAIL_PASSWORD=<sdylutsjvdofvvfh>
MAIL_ENCRYPTION=tls
MAIL_FROM_ADDRESS=<3213.kotaro.basketball@gmail.com>
MAIL_FROM_NAME=laravel-ec
MAIL_FROM_NAME="${APP_NAME}"

AWS_ACCESS_KEY_ID=
AWS_SECRET_ACCESS_KEY=
AWS_DEFAULT_REGION=us-east-1
AWS_BUCKET=

PUSHER_APP_ID=
PUSHER_APP_KEY=
PUSHER_APP_SECRET=
PUSHER_APP_CLUSTER=mt1

MIX_PUSHER_APP_KEY="${PUSHER_APP_KEY}"
MIX_PUSHER_APP_CLUSTER="${PUSHER_APP_CLUSTER}"