k9mail/k-9 — pull request #442 by nysatrok (2014-01-12 23:25:24+00:00)
Title: Update providers.xml for German providers

Sources:
http://kundenservice.freenet.de/hilfe/mail4/email-programme/einstellungen-generell/generelle-einstellungen/index.html
http://hilfe.telekom.de/hsp/cms/content/HSP/de/3378/FAQ/theme-45858870/Internet/theme-45858718/Dienste/theme-45858716/E-Mail/theme-305642824/Allgemein/theme-57360865/IMAP/faq-45858521
https://hilfe.web.de/e-mail/imap.html
https://hilfe.gmx.net/mailprogramme/imap.html