Is tcd.ie a valid email domain?
Mail for tcd.ie is handled by 1 server at Microsoft (Outlook or Microsoft 365), with tcd-ie.mail.protection.outlook.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 tcd.ie
Type the name before the @ to check a full address. No account needed.
MX records (Microsoft (Outlook or Microsoft 365))
| Priority | Mail server | Resolves to |
|---|---|---|
| 10 | tcd-ie.mail.protection.outlook.com | 52.101.181.153, 52.101.68.8 |
SPF
Record published
v=spf1 ip4:134.226.14.40 ip4:134.226.251.0/21 include:spf.protection.outlook.com include:_spf.google.com include:netaffinity.net include:_spf.eu.messagegears.net include:mh.blackboard.com -all
DMARC
Policy: reject
v=DMARC1; p=reject; sp=none; rua=mailto:dmarc_agg@vali.email, mailto:5e71390ec666207@rep.dmarcanalyzer.com; ruf=mailto:5e71390ec666207@for.dmarcanalyzer.com; fo=1;
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
The domain accepts mail, but whether a given person's mailbox exists depends on that organisation. Company domains often have staff who left, role mailboxes like info@ and sales@, and sometimes catch-all rules that accept everything. Verify the individual address before you send.
Sender authentication
tcd.ie has a strict DMARC policy (reject): mail that fails authentication is refused, which protects its brand from spoofing and means anyone sending as tcd.ie must have SPF and DKIM set up correctly.
✨ Report summary
Sign up to get a report summary: a plain-English read of this domain's mail setup and what to do next.
Sign up to get a report summary →Frequently asked questions
- Is tcd.ie a valid email domain?
- Yes. tcd.ie publishes 1 MX record and can receive email. Whether a particular mailbox exists is a separate question that only a mailbox check can answer.
- Is tcd.ie a disposable email domain?
- No. tcd.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 tcd.ie?
- tcd-ie.mail.protection.outlook.com (priority 10).
- Does tcd.ie have SPF and DMARC?
- SPF: yes, ending -all. DMARC: yes, policy reject.