* Posteo: not that there is [no spam folder](https://posteo.de/en/help/how-does-the-posteo-spam-filter-work) ([German](https://posteo.de/hilfe/wie-funktioniert-der-posteo-spamfilter))
* Posteo: not that there is [no spam folder](https://posteo.de/en/help/how-does-the-posteo-spam-filter-work) ([German](https://posteo.de/hilfe/wie-funktioniert-der-posteo-spamfilter))
* Web.de: please check if [IMAP is enabled](https://hilfe.web.de/pop-imap/imap/imap-serverdaten.html)
* Web.de: please check if [IMAP is enabled](https://hilfe.web.de/pop-imap/imap/imap-serverdaten.html)
* Web.de: with two factor authentication you'll need to use [an app password](https://web.de/email/sicherheit/zwei-faktor-authentifizierung/)
* Web.de: with two factor authentication you'll need to use [an app password](https://web.de/email/sicherheit/zwei-faktor-authentifizierung/)
* Web.de: if you are missing the spam messages folder, you should enable spam filtering via the website of web.de again
* GMX: please check if [IMAP is enabled](https://support.gmx.com/pop-imap/toggle.html) ([German](https://hilfe.gmx.net/pop-imap/einschalten.html)). Reportedly, you need to do this on a desktop computer.
* GMX: please check if [IMAP is enabled](https://support.gmx.com/pop-imap/toggle.html) ([German](https://hilfe.gmx.net/pop-imap/einschalten.html)). Reportedly, you need to do this on a desktop computer.
* GMX: with two factor authentication you'll need to use [an app password](https://support.gmx.com/security/2fa/application-specific-passwords.html) ([German](https://hilfe.gmx.net/sicherheit/2fa/anwendungsspezifisches-passwort.html)). Not that enabling two-factor authentication does not automatically enable IMAP.
* GMX: with two factor authentication you'll need to use [an app password](https://support.gmx.com/security/2fa/application-specific-passwords.html) ([German](https://hilfe.gmx.net/sicherheit/2fa/anwendungsspezifisches-passwort.html)). Not that enabling two-factor authentication does not automatically enable IMAP.
* T-online.de: please make sure you use [an email password](https://www.telekom.de/hilfe/festnetz-internet-tv/e-mail/e-mail-adresse-passwoerter-und-sicherheit/passwort-fuer-e-mail-programme-einrichten) (German) and not your account password
* T-online.de: please make sure you use [an email password](https://www.telekom.de/hilfe/festnetz-internet-tv/e-mail/e-mail-adresse-passwoerter-und-sicherheit/passwort-fuer-e-mail-programme-einrichten) (German) and not your account password
<li>Posteo: not that there is <ahref="https://posteo.de/en/help/how-does-the-posteo-spam-filter-work">no spam folder</a> (<ahref="https://posteo.de/hilfe/wie-funktioniert-der-posteo-spamfilter">German</a>)</li>
<li>Posteo: not that there is <ahref="https://posteo.de/en/help/how-does-the-posteo-spam-filter-work">no spam folder</a> (<ahref="https://posteo.de/hilfe/wie-funktioniert-der-posteo-spamfilter">German</a>)</li>
<li>Web.de: please check if <ahref="https://hilfe.web.de/pop-imap/imap/imap-serverdaten.html">IMAP is enabled</a></li>
<li>Web.de: please check if <ahref="https://hilfe.web.de/pop-imap/imap/imap-serverdaten.html">IMAP is enabled</a></li>
<li>Web.de: with two factor authentication you’ll need to use <ahref="https://web.de/email/sicherheit/zwei-faktor-authentifizierung/">an app password</a></li>
<li>Web.de: with two factor authentication you’ll need to use <ahref="https://web.de/email/sicherheit/zwei-faktor-authentifizierung/">an app password</a></li>
<li>Web.de: if you are missing the spam messages folder, you should enable spam filtering via the website of web.de again</li>
<li>GMX: please check if <ahref="https://support.gmx.com/pop-imap/toggle.html">IMAP is enabled</a> (<ahref="https://hilfe.gmx.net/pop-imap/einschalten.html">German</a>). Reportedly, you need to do this on a desktop computer.</li>
<li>GMX: please check if <ahref="https://support.gmx.com/pop-imap/toggle.html">IMAP is enabled</a> (<ahref="https://hilfe.gmx.net/pop-imap/einschalten.html">German</a>). Reportedly, you need to do this on a desktop computer.</li>
<li>GMX: with two factor authentication you’ll need to use <ahref="https://support.gmx.com/security/2fa/application-specific-passwords.html">an app password</a> (<ahref="https://hilfe.gmx.net/sicherheit/2fa/anwendungsspezifisches-passwort.html">German</a>). Not that enabling two-factor authentication does not automatically enable IMAP.</li>
<li>GMX: with two factor authentication you’ll need to use <ahref="https://support.gmx.com/security/2fa/application-specific-passwords.html">an app password</a> (<ahref="https://hilfe.gmx.net/sicherheit/2fa/anwendungsspezifisches-passwort.html">German</a>). Not that enabling two-factor authentication does not automatically enable IMAP.</li>
<li>T-online.de: please make sure you use <ahref="https://www.telekom.de/hilfe/festnetz-internet-tv/e-mail/e-mail-adresse-passwoerter-und-sicherheit/passwort-fuer-e-mail-programme-einrichten">an email password</a> (German) and not your account password</li>
<li>T-online.de: please make sure you use <ahref="https://www.telekom.de/hilfe/festnetz-internet-tv/e-mail/e-mail-adresse-passwoerter-und-sicherheit/passwort-fuer-e-mail-programme-einrichten">an email password</a> (German) and not your account password</li>