{"id":17145992,"url":"https://github.com/foxcpp/imap-caps-support","last_synced_at":"2026-03-18T23:36:38.671Z","repository":{"id":98733393,"uuid":"189779259","full_name":"foxcpp/imap-caps-support","owner":"foxcpp","description":"Index of client-side IMAP extensions support, used to prioritize support in maddy","archived":false,"fork":false,"pushed_at":"2019-06-01T23:34:24.000Z","size":5,"stargazers_count":3,"open_issues_count":0,"forks_count":0,"subscribers_count":3,"default_branch":"master","last_synced_at":"2025-01-29T15:50:40.320Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":"","language":null,"has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"wtfpl","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/foxcpp.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2019-06-01T21:31:42.000Z","updated_at":"2022-09-24T19:58:15.000Z","dependencies_parsed_at":"2023-03-30T23:23:17.037Z","dependency_job_id":null,"html_url":"https://github.com/foxcpp/imap-caps-support","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/foxcpp%2Fimap-caps-support","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/foxcpp%2Fimap-caps-support/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/foxcpp%2Fimap-caps-support/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/foxcpp%2Fimap-caps-support/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/foxcpp","download_url":"https://codeload.github.com/foxcpp/imap-caps-support/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":245250777,"owners_count":20584784,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":[],"created_at":"2024-10-14T21:07:31.402Z","updated_at":"2026-01-29T10:42:47.315Z","avatar_url":"https://github.com/foxcpp.png","language":null,"funding_links":[],"categories":[],"sub_categories":[],"readme":"IMAP clients capability support status index\n=============================================\n\n**Disclaimer:** Updated when I feel like it, correct as I like it.\nIn most cases, information is taked from https://codesearch.debian.net.\n\nThe table for servers support can be found on imapwiki:\nhttps://www.imapwiki.org/Specs\n\nCapabilities list taken from related IANA registry at 2019-06-01.\nObsolete extensions are not included.\n\nA client is considered to support extension if it checks its support on the\nserver by looking at returned capabilities list. Even if it doesn't actually\nmakes any use of it.\n\n**Legend:** `?` - unknown (probably doesn't support), `+` - supports, `-` -\ndoesn't support (check git blame for update timestamp)\n\nCapability Name                    | Thunderbird | KMail | Roundcube | Rainloop | mutt | balsa | geary | Evolution |\n-----------------------------------|:-----------:|:-----:|:---------:|:--------:|:----:|:-----:|:-----:|:----------|\n[ACL][RFC4314]                     |      +      |   +   |     +     |    -     |  +   |   +   |   -   |     -     | \n[ANNOTATE-EXPERIMENT-1][RFC5257]   |      -      |   -   |     -     |    -     |  -   |   -   |   -   |     -     | \n[APPENDLIMIT][RFC7889]             |      -      |   -   |     -     |    -     |  -   |   -   |   -   |     -     | \n[BINARY][RFC3516]                  |      -      |   -   |     +     |    -     |  -   |   +   |   ?   |     ?     | \n[CATENATE][RFC4469]                |      -      |   -   |     -     |    -     |  -   |   -   |   -   |     ?     | \n[CHILDREN][RFC3348]                |      +      |   -   |     -     |    -     |  -   |   +   |   +   |     +     | \n[COMPRESS=DEFLATE][RFC4978]        |      +      |   -   |     -     |    -     |  -   |   +   |   -   |     -     | \n[CONDSTORE][RFC7162]               |      +      |   +   |     +     |    +     |  -   |   -   |   -   |     +     | \n[CONTEXT=SEARCH][RFC5267]          |      ?      |   ?   |     ?     |    ?     |  ?   |   ?   |   ?   |     ?     | \n[CONTEXT=SORT][RFC5267]            |      ?      |   ?   |     ?     |    ?     |  ?   |   ?   |   ?   |     ?     | \n[CONVERT][RFC5259]                 |      ?      |   -   |     -     |    -     |  -   |   -   |   -   |     ?     | \n[CREATE-SPECIAL-USE][RFC6154]      |      -      |   -   |     +     |    -     |  -   |   -   |   -   |     ?     | \n[ENABLE][RFC5161]                  |      +      |   -   |     +     |    -     |  +   |   -   |   -   |     ?     | \n[ESEARCH][RFC4731]                 |      ?      |   ?   |     ?     |    ?     |  ?   |   +   |   ?   |     ?     | \n[ESORT][RFC5267]                   |      -      |   -   |     -     |    -     |  -   |   -   |   -   |     ?     | \n[FILTERS][RFC5466]                 |      ?      |   ?   |     ?     |    ?     |  ?   |   ?   |   ?   |     ?     | \n[I18NLEVEL=1][RFC5255]             |      -      |   -   |     -     |    -     |  -   |   -   |   -   |     ?     | \n[I18NLEVEL=2][RFC5255]             |      -      |   -   |     -     |    -     |  -   |   -   |   -   |     ?     | \n[ID][RFC2971]                      |      +      |   ?   |     ?     |    ?     |  ?   |   ?   |   ?   |     ?     | \n[IDLE][RFC2177]                    |      +      |   +   |     -     |    -     |  +   |   +   |   +   |     +     | \n[IMAPSIEVE=][RFC6785]              |      -      |   -   |     -     |    -     |  -   |   -   |   -   |     -     | \n[LANGUAGE][RFC5255]                |      -      |   -   |     -     |    -     |  -   |   -   |   -   |     -     | \n[LIST-EXTENDED][RFC5258]           |      +      |   ?   |     +     |    ?     |  ?   |   ?   |   ?   |     +     |  \n[LIST-MYRIGHTS][RFC8440]           |      -      |   -   |     -     |    -     |  -   |   -   |   -   |     -     |  \n[LIST-STATUS][RFC5819]             |      ?      |   ?   |     +     |    +     |  ?   |   ?   |   +   |     +     |  \n[LITERAL+][RFC7888]                |      +      |   ?   |     +     |    ?     |  ?   |   +   |   ?   |     +     | \n[LITERAL-][RFC7888]                |      -      |   -   |     -     |    -     |  -   |   -   |   -   |     -     | \n[LOGIN-REFERRALS][RFC2221]         |      -      |   -   |     -     |    -     |  -   |   -   |   -   |     -     | \n[LOGINDISABLED][RFC2595]           |      +      |   +   |     +     |    -     |  +   |   +   |   ?   |     -     | \n[MAILBOX-REFERRALS][RFC2193]       |      -      |   -   |     -     |    -     |  -   |   -   |   -   |     -     | \n[METADATA][RFC5464]                |      ?      |   +   |     +     |    -     |  -   |   -   |   -   |     -     | \n[METADATA-SERVER][RFC5464]         |      ?      |   ?   |     +     |    -     |  -   |   -   |   -   |     -     | \n[MOVE][RFC6851]                    |      +      |   +   |     +     |    -     |  -   |   -   |   ?   |     ?     | \n[MULTIAPPEND][RFC3502]             |      ?      |   ?   |     ?     |    ?     |  ?   |   +   |   ?   |     ?     | \n[MULTISEARCH][RFC7377]             |      ?      |   ?   |     ?     |    ?     |  ?   |   -   |   ?   |     ?     | \n[NAMESPACE][RFC2342]               |      +      |   ?   |     ?     |    ?     |  +   |   +   |   ?   |     +     | \n[NOTIFY][RFC5465]                  |      ?      |   ?   |     ?     |    ?     |  ?   |   ?   |   ?   |     +     | \n[OBJECTID][RFC8474]                |      ?      |   ?   |     ?     |    ?     |  ?   |   ?   |   ?   |     ?     | \n[QRESYNC][RFC7162]                 |      ?      |   ?   |     +     |    ?     |  ?   |   ?   |   ?   |     +     | \n[QUOTA][RFC2087]                   |      +      |   +   |     +     |    +     |  ?   |   +   |   ?   |     +     | \n[REPLACE][RFC8508]                 |      ?      |   ?   |     ?     |    ?     |  ?   |   ?   |   ?   |     ?     | \n[RIGHTS=][RFC4314]                 |      ?      |   ?   |     ?     |    ?     |  ?   |   ?   |   ?   |     ?     | \n[SASL-IR][RFC4959]                 |      ?      |   +   |     +     |    +     |  +   |   +   |   +   |     ?     | \n[SAVEDATE][RFC8514]                |      ?      |   ?   |     ?     |    ?     |  ?   |   ?   |   ?   |     ?     | \n[SEARCH=FUZZY][RFC6203]            |      ?      |   ?   |     ?     |    ?     |  ?   |   ?   |   ?   |     ?     | \n[SEARCHRES][RFC5182]               |      ?      |   ?   |     ?     |    ?     |  ?   |   ?   |   ?   |     ?     | \n[SORT][RFC5256]                    |      ?      |   ?   |     ?     |    ?     |  ?   |   +   |   ?   |     ?     | \n[SORT=DISPLAY][RFC5957]            |      ?      |   ?   |     ?     |    ?     |  ?   |   ?   |   ?   |     ?     | \n[SPECIAL-USE][RFC6154]             |      +      |   ?   |     +     |    +     |  ?   |   ?   |   +   |     +     | \n[STARTTLS][RFC2595]                |      +      |   +   |     +     |    +     |  +   |   +   |   +   |     +     | \n[STATUS=SIZE][RFC8438]             |      ?      |   ?   |     ?     |    ?     |  ?   |   ?   |   ?   |     ?     | \n[THREAD][RFC5256]                  |      ?      |   ?   |     ?     |    ?     |  ?   |   +   |   ?   |     ?     | \n[UIDPLUS][RFC4315]                 |      +      |   +   |     ?     |    ?     |  ?   |   +   |   ?   |     ?     | \n[UNAUTHENTICATE][RFC8437]          |      ?      |   ?   |     ?     |    ?     |  ?   |   ?   |   ?   |     ?     | \n[UNSELECT][RFC3691]                |      ?      |   ?   |     ?     |    ?     |  ?   |   +   |   ?   |     ?     | \n[URLFETCH=BINARY][RFC5524]         |      ?      |   ?   |     ?     |    ?     |  ?   |   ?   |   ?   |     ?     | \n[URL-PARTIAL][RFC5550]             |      ?      |   ?   |     ?     |    ?     |  ?   |   ?   |   ?   |     ?     | \n[URLAUTH][RFC4467]                 |      ?      |   ?   |     ?     |    ?     |  ?   |   ?   |   ?   |     ?     | \n[UTF8=ACCEPT][RFC6855]             |      ?      |   ?   |     ?     |    ?     |  +   |   ?   |   ?   |     +     | \n[UTF8=ONLY][RFC6855]               |      ?      |   ?   |     ?     |    ?     |  +   |   ?   |   ?   |     +     | \n[WITHIN][RFC5032]                  |      ?      |   ?   |     ?     |    ?     |  ?   |   ?   |   ?   |     ?     | \n\n[RFC4314]: https://tools.ietf.org/html/rfc4314  \n[RFC5257]: https://tools.ietf.org/html/rfc5257  \n[RFC7889]: https://tools.ietf.org/html/rfc7889  \n[RFC3501]: https://tools.ietf.org/html/rfc3501  \n[RFC3516]: https://tools.ietf.org/html/rfc3516  \n[RFC4469]: https://tools.ietf.org/html/rfc4469  \n[RFC3348]: https://tools.ietf.org/html/rfc3348  \n[RFC4978]: https://tools.ietf.org/html/rfc4978  \n[RFC7162]: https://tools.ietf.org/html/rfc7162  \n[RFC5267]: https://tools.ietf.org/html/rfc5267  \n[RFC5267]: https://tools.ietf.org/html/rfc5267  \n[RFC5259]: https://tools.ietf.org/html/rfc5259  \n[RFC6154]: https://tools.ietf.org/html/rfc6154  \n[RFC5161]: https://tools.ietf.org/html/rfc5161  \n[RFC4731]: https://tools.ietf.org/html/rfc4731  \n[RFC5267]: https://tools.ietf.org/html/rfc5267  \n[RFC5466]: https://tools.ietf.org/html/rfc5466  \n[RFC5255]: https://tools.ietf.org/html/rfc5255  \n[RFC5255]: https://tools.ietf.org/html/rfc5255  \n[RFC2971]: https://tools.ietf.org/html/rfc2971  \n[RFC2177]: https://tools.ietf.org/html/rfc2177  \n[RFC6785]: https://tools.ietf.org/html/rfc6785  \n[RFC5255]: https://tools.ietf.org/html/rfc5255  \n[RFC5258]: https://tools.ietf.org/html/rfc5258  \n[RFC8440]: https://tools.ietf.org/html/rfc8440  \n[RFC5819]: https://tools.ietf.org/html/rfc5819  \n[RFC7888]: https://tools.ietf.org/html/rfc7888  \n[RFC7888]: https://tools.ietf.org/html/rfc7888  \n[RFC2221]: https://tools.ietf.org/html/rfc2221  \n[RFC2595]: https://tools.ietf.org/html/rfc2595  \n[RFC3501]: https://tools.ietf.org/html/rfc3501  \n[RFC2193]: https://tools.ietf.org/html/rfc2193  \n[RFC5464]: https://tools.ietf.org/html/rfc5464  \n[RFC5464]: https://tools.ietf.org/html/rfc5464  \n[RFC6851]: https://tools.ietf.org/html/rfc6851  \n[RFC3502]: https://tools.ietf.org/html/rfc3502  \n[RFC7377]: https://tools.ietf.org/html/rfc7377  \n[RFC2342]: https://tools.ietf.org/html/rfc2342  \n[RFC5465]: https://tools.ietf.org/html/rfc5465  \n[RFC8474]: https://tools.ietf.org/html/rfc8474  \n[RFC7162]: https://tools.ietf.org/html/rfc7162  \n[RFC2087]: https://tools.ietf.org/html/rfc2087  \n[RFC8508]: https://tools.ietf.org/html/rfc8508  \n[RFC4314]: https://tools.ietf.org/html/rfc4314  \n[RFC4959]: https://tools.ietf.org/html/rfc4959  \n[RFC8514]: https://tools.ietf.org/html/rfc8514  \n[RFC6203]: https://tools.ietf.org/html/rfc6203  \n[RFC5182]: https://tools.ietf.org/html/rfc5182  \n[RFC5256]: https://tools.ietf.org/html/rfc5256  \n[RFC5957]: https://tools.ietf.org/html/rfc5957  \n[RFC6154]: https://tools.ietf.org/html/rfc6154  \n[RFC2595]: https://tools.ietf.org/html/rfc2595  \n[RFC3501]: https://tools.ietf.org/html/rfc3501  \n[RFC8438]: https://tools.ietf.org/html/rfc8438  \n[RFC5256]: https://tools.ietf.org/html/rfc5256  \n[RFC4315]: https://tools.ietf.org/html/rfc4315  \n[RFC8437]: https://tools.ietf.org/html/rfc8437  \n[RFC3691]: https://tools.ietf.org/html/rfc3691  \n[RFC5524]: https://tools.ietf.org/html/rfc5524  \n[RFC5550]: https://tools.ietf.org/html/rfc5550  \n[RFC4467]: https://tools.ietf.org/html/rfc4467  \n[RFC6855]: https://tools.ietf.org/html/rfc6855  \n[RFC5738]: https://tools.ietf.org/html/rfc5738  \n[RFC6855]: https://tools.ietf.org/html/rfc6855  \n[RFC5738]: https://tools.ietf.org/html/rfc5738  \n[RFC6855]: https://tools.ietf.org/html/rfc6855  \n[RFC6855]: https://tools.ietf.org/html/rfc6855  \n[RFC5738]: https://tools.ietf.org/html/rfc5738  \n[RFC6855]: https://tools.ietf.org/html/rfc6855  \n[RFC5032]: https://tools.ietf.org/html/rfc5032  \n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ffoxcpp%2Fimap-caps-support","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Ffoxcpp%2Fimap-caps-support","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ffoxcpp%2Fimap-caps-support/lists"}