SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

mail-srv.eu

SSL/TLS Certificate

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SSL/TLS Certificate for mail-srv.eu

Valid
Issued by (CA)
Let's Encrypt
Subject
42-matrix.de
Valid from
Jun 23, 2026
Valid until
Sep 21, 2026 (60 days remaining)
Public key
RSA 4096-bit
Serial
05C6388A58AB4384F4EADD6A0D2FE90DD4AE
SHA-256 fingerprint
CD:9C:BB:F0:68:54:FD:91:D7:29:DE:A7:BD:D6:34:C8:EF:C5:B9:38:D6:23:1F:E6:58:F9:27:05:8A:0E:BA:17
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (16)
42-matrix.de, 42-tec.de, devil-42.de, imap.mail-srv.eu, mail-srv.eu, mail.mail-srv.eu, matrix.42-tec.de, mx.mail-srv.eu, mx.r-lnx.de, r-lnx.de, rallyteam.de, smtp.mail-srv.eu, www.42-tec.de, www.devil-42.de, www.r-lnx.de, www.rallyteam.de

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

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DNS changes

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TLS certificate

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