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Unable to log in at server. Probably wrong configuration, username or password. (1&1 IMAP)

sebastian.guckes
sebastian.guckes
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Hi, I have an existing installation of Thunderbird 91.9.1 on my linux system. I have a gmail, outlook and web.de mail each running via this installation (IMAP). My new workmail is hosted by 1&1(ionos). I can log in via web interface. Autoconfig finds the configuration that is (according to their help articles) the correct one to access the Mail via IMAP. Incoming: imap.1und1.de SSL/TLS 993 Outgoing: smtp.1und1.de STARTTLS 587 normal Password Username is my full email address. There have been no typos. I checked 5x, copy pasted, rechecked. Pasted it into the web interface login, and thunderbird before clicking go on each -> tb - no, web - yes domain is talsen.team

I would appreciate some pointers to get this fixed. And yes i did read prior questions regarding this error. It did not help in my case.

Hi, I have an existing installation of Thunderbird 91.9.1 on my linux system. I have a gmail, outlook and web.de mail each running via this installation (IMAP). My new workmail is hosted by 1&1(ionos). I can log in via web interface. Autoconfig finds the configuration that is (according to their help articles) the correct one to access the Mail via IMAP. Incoming: imap.1und1.de SSL/TLS 993 Outgoing: smtp.1und1.de STARTTLS 587 normal Password Username is my full email address. There have been no typos. I checked 5x, copy pasted, rechecked. Pasted it into the web interface login, and thunderbird before clicking go on each -> tb - no, web - yes domain is talsen.team I would appreciate some pointers to get this fixed. And yes i did read prior questions regarding this error. It did not help in my case.

Valgt løsning

Ok I found the problem... Basically the mail was too new. I was already using the ionos webmail interface, but from the outside it was "not created" yet. In my Webmail interface i received an email along the lines of "Thank you for choosing ionos..." "We have created a basic mail..." "to use your new mail pleas log into webmail using the following link" -> did it, URL was slightly different(mail.ionos.de instead of email.ionos.de) after logging in once more i returned to the usual webinterface but now i was able to connect thunderbird via imap.

TLDR: Wait for a confirmation Mail from ionos asking you to activate your "Mail Basic Account". Afterwards you can connect via IMAP

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sebastian.guckes
sebastian.guckes Spørgsmålsstiller
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Valgt løsning

Ok I found the problem... Basically the mail was too new. I was already using the ionos webmail interface, but from the outside it was "not created" yet. In my Webmail interface i received an email along the lines of "Thank you for choosing ionos..." "We have created a basic mail..." "to use your new mail pleas log into webmail using the following link" -> did it, URL was slightly different(mail.ionos.de instead of email.ionos.de) after logging in once more i returned to the usual webinterface but now i was able to connect thunderbird via imap.

TLDR: Wait for a confirmation Mail from ionos asking you to activate your "Mail Basic Account". Afterwards you can connect via IMAP