IONOS: imap.ionos.fr or imap.ionos.com?

IONOS runs separate servers for Europe and the US; the wrong one rejects a correct password.

Updated October 27, 2026

IONOS has two independent platforms. A correct password on the wrong server returns "authentication failed", which looks like a typo but isn't.

Contracts bought from ionos.fr / ionos.de / ionos.es: imap.ionos.fr and smtp.ionos.fr (ports 993 and 465).
Contracts bought from ionos.com: imap.ionos.com and smtp.ionos.com.

Mailbind picks the European servers for .fr addresses; if your contract is American, type the .com servers under Other.

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