PORT=3000

# SMTP — defaults are set for Resend.
# Port 587 (STARTTLS) is used instead of 465 (implicit TLS) because most VPS
# providers (Hetzner, DigitalOcean, etc.) block outbound 465 by default.
SMTP_HOST=smtp.resend.com
SMTP_PORT=587
SMTP_USER=resend
SMTP_PASSWORD=
MAIL_FROM=send@read.atanasov.fi

# Comma-separated list of allowed destination email domains. Anything that
# doesn't match (suffix-wise, so subdomains like free.kindle.com count) is
# rejected with a 400. This prevents the app from being abused as an open
# email relay to arbitrary addresses.
ALLOWED_READER_DOMAINS=kindle.com,pbsync.com