Is dcu.ie a valid email domain?
Mail for dcu.ie is handled by 5 servers at Google (Gmail or Google Workspace), with aspmx.l.google.com tried first.
It is not a free provider and is not on our disposable list, so addresses here usually belong to a company, school or other organisation.
SPF is published and ends with ~all. DMARC is set to reject.
Check an email address at dcu.ie
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MX records (Google (Gmail or Google Workspace))
| Priority | Mail server | Resolves to |
|---|---|---|
| 1 | aspmx.l.google.com | 142.251.127.26, 2a00:1450:4001:c21::1b |
| 5 | alt1.aspmx.l.google.com | 142.250.147.26, 2a00:1450:4025:c01::1a |
| 5 | alt2.aspmx.l.google.com | 172.253.152.26, 2a00:1450:4010:c22::1b |
| 10 | alt3.aspmx.l.google.com | 192.179.20.27, 2404:6800:4000:1027::1b |
| 10 | alt4.aspmx.l.google.com | 192.178.158.26, 2404:6800:4013:813::1b |
SPF
Record published
v=spf1 include:_spf.google.com ip4:136.206.1.100 ip4:198.187.196.100 ip4:193.120.143.134 include:spf-eu.exlibrisgroup.com include:spf.protection.outlook.com include:mail.zendesk.com ~all
DMARC
Policy: reject
v=DMARC1; p=reject; rua=mailto:dmarc@dcu.ie, mailto:xp52vxju@ag.eu.dmarcian.com
Disposable?
No, not on our disposable list.
Free provider?
No, not a known free provider.
What this means for your email list
What this means for addresses at this domain
Mail routing for dcu.ie is healthy, so the domain is not the risk. The risk is the mailbox: outdated contacts, shared inboxes and catch-all servers. A mailbox-level check tells you which addresses are safe to send to.
Sender authentication
dcu.ie has a strict DMARC policy (reject): mail that fails authentication is refused, which protects its brand from spoofing and means anyone sending as dcu.ie must have SPF and DKIM set up correctly.
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Sign up to get a report summary →Frequently asked questions
- Is dcu.ie a valid email domain?
- Yes. dcu.ie publishes 5 MX records and can receive email. Whether a particular mailbox exists is a separate question that only a mailbox check can answer.
- Is dcu.ie a disposable email domain?
- No. dcu.ie is not on our disposable list. The list is updated regularly, and new throwaway domains appear all the time.
- What are the MX records for dcu.ie?
- aspmx.l.google.com (priority 1); alt1.aspmx.l.google.com (priority 5); alt2.aspmx.l.google.com (priority 5); alt3.aspmx.l.google.com (priority 10); alt4.aspmx.l.google.com (priority 10).
- Does dcu.ie have SPF and DMARC?
- SPF: yes, ending ~all. DMARC: yes, policy reject.