Add list of clients supporting Autoconfig/ISPDB

docs/client-support.md

@@ -0,0 +1,19 @@
+# Client software supporting Autoconfig
+
+These email clients or libraries support (part of) the Autoconfig protocol:
+
+|Name|Source code|Uses ISPDB?|
+|-|-|-|
+|[Delta Chat](https://delta.chat/)|[Link](https://github.com/deltachat/deltachat-core-rust/blob/main/src/configure.rs)|:white_check_mark:|
+|[EGroupware](https://www.egroupware.org/)|[Link](https://github.com/EGroupware/egroupware/blob/master/admin/inc/class.admin_mail.inc.php)|:white_check_mark:|
+|[EmailEngine](https://emailengine.app/)|[Link](https://github.com/postalsys/emailengine/blob/master/lib/autodetect-imap-settings.js)|:white_check_mark:|
+|[ePADD](https://www.epaddproject.org/)|[Link](https://github.com/ePADD/epadd/blob/main/src/java/edu/stanford/muse/webapp/Accounts.java)|:white_check_mark:|
+|[Evolution](https://wiki.gnome.org/Apps/Evolution)|[Link](https://gitlab.gnome.org/GNOME/evolution/-/blob/master/src/mail/e-mail-autoconfig.c)|:white_check_mark:|
+|[FairEmail](https://email.faircode.eu/)|[Link](https://github.com/M66B/FairEmail/blob/master/app/src/main/java/eu/faircode/email/EmailProvider.java)|:white_check_mark:|
+|[Geary](https://wiki.gnome.org/Apps/Geary)|[Link](https://gitlab.gnome.org/GNOME/geary/-/blob/main/src/client/accounts/accounts-autoconfig.vala)|:white_check_mark:|
+|[K-9 Mail](https://k9mail.app/)|[Link](https://github.com/thunderbird/thunderbird-android/tree/main/feature/autodiscovery/autoconfig/src/main/kotlin/app/k9mail/autodiscovery/autoconfig)|:white_check_mark:|
+|[Kontact](https://kontact.kde.org/)|[Link](https://invent.kde.org/pim/kmail-account-wizard/-/blob/master/src/ispdbservice.cpp)|:white_check_mark:|
+|[Nextcloud Mail](https://apps.nextcloud.com/apps/mail)|[Link](https://github.com/nextcloud/mail/tree/main/lib/Service/AutoConfig)|:white_check_mark:|
+|[Thunderbird](https://thunderbird.net/)|[Link](https://searchfox.org/comm-central/source/mail/components/accountcreation/modules)|:white_check_mark:|
+
+Please submit a pull request to add a missing client or update an existing entry.