Is tum.de a valid email domain?
tum.de has working mail routing: 2 MX records pointing, led by postrelay2.lrz.de.
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. DMARC is set to quarantine.
Check an email address at tum.de
Type the name before the @ to check a full address. No account needed.
MX records
| Priority | Mail server | Resolves to |
|---|---|---|
| 100 | postrelay2.lrz.de | 129.187.255.161, 129.187.254.159 |
| 100 | postrelay1.lrz.de | 129.187.255.160, 129.187.254.158 |
SPF
Record published
v=spf1 a:mail.zv.tum.de a:mail.ze.tum.de redirect=_spf.mail.lrz.de
DMARC
Policy: quarantine
v=DMARC1; p=quarantine; rua=mailto:dmarc-reports@lrz.de
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 tum.de 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 The risk is the mailbox: outdated contacts, shared inboxes and catch-all servers.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
tum.de uses a DMARC quarantine policy: mail that fails authentication is sent to spam. That is a sound middle step, and a good sign the owner looks after their email setup.
✨ 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 tum.de a valid email domain?
- Yes. tum.de publishes 2 MX records and can receive email. Whether a particular mailbox exists is a separate question that only a mailbox check can answer.
- Is tum.de a disposable email domain?
- No. tum.de 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 tum.de?
- postrelay2.lrz.de (priority 100); postrelay1.lrz.de (priority 100).
- Does tum.de have SPF and DMARC?
- SPF: yes. DMARC: yes, policy quarantine.