Is igd.gob.sv valid?

Domain: igd.gob.sv

Valid: Yes

This domain is valid and should be able to receive e-mail.

Tested MX: igd-gob-sv.mail.protection.outlook.com (52.101.8.32)

Using MX pointer igd-gob-sv.mail.protection.outlook.com from DNS with priority: 10

Block: No

You do not need to block this domain for signups/registrations.

Disposable: No

This does not look like a temporary/disposable e-mail domain.

Raw API reason:

USE THE API, DO NOT SCRAPE THIS DATA

Heuristics: WM1

START USING FREE API