Is tu-berlin.de a valid email domain?
tu-berlin.de has working mail routing: 3 MX records pointing, led by c1861.mx.srv.dfn.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 and ends with ~all. DMARC is set to quarantine.
Check an email address at tu-berlin.de
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MX records
| Priority | Mail server | Resolves to |
|---|---|---|
| 10 | c1861.mx.srv.dfn.de | 194.95.238.130 |
| 10 | a1861.mx.srv.dfn.de | 194.95.232.130 |
| 10 | b1861.mx.srv.dfn.de | 194.95.234.130 |
SPF
Record published
v=spf1 ip4:130.149.7.33/32 ip4:130.149.7.70/32 ip4:141.23.12.141/32 ip4:141.23.12.142/32 ip4:141.23.12.143/32 ip4:194.95.233.66/32 ip4:194.95.235.66/32 ip4:194.95.239.66/32 ~all
DMARC
Policy: quarantine
v=DMARC1;p=quarantine;sp=quarantine;pct=100;rua=mailto:postmaster@win.tu-berlin.de;rf=afrf;ruf=mailto:postmaster@win.tu-berlin.de;fo=1;ri=86400;adkim=r;aspf=r
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
tu-berlin.de looks like an organisation's own domain. Those are usually good leads, and also where bounces come from: people change jobs and mailboxes get closed. Checking each address, including whether the server accepts any recipient, avoids damaging your sender reputation.
Sender authentication
tu-berlin.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.
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Sign up to get a report summary →Frequently asked questions
- Is tu-berlin.de a valid email domain?
- Yes. tu-berlin.de publishes 3 MX records and can receive email. Whether a particular mailbox exists is a separate question that only a mailbox check can answer.
- Is tu-berlin.de a disposable email domain?
- No. tu-berlin.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 tu-berlin.de?
- c1861.mx.srv.dfn.de (priority 10); a1861.mx.srv.dfn.de (priority 10); b1861.mx.srv.dfn.de (priority 10).
- Does tu-berlin.de have SPF and DMARC?
- SPF: yes, ending ~all. DMARC: yes, policy quarantine.