# \#imap **URL:** https://help.nextcloud.com/tag/imap/107.md [Latest](https://help.nextcloud.com/latest.md) · [Categories](https://help.nextcloud.com/categories.md) · [Tags](https://help.nextcloud.com/tags.md) --- ## [Sync large mail box on NextCloud Mail - MailboxLockedError with Mailcow & Docker](https://help.nextcloud.com/t/sync-large-mail-box-on-nextcloud-mail-mailboxlockederror-with-mailcow-docker/243737)
**Author:** [@francescom](https://help.nextcloud.com/u/francescom)\ **Replies:** 2\ **Last updated:** [April 27, 2026, 7:23pm UTC](https://help.nextcloud.com/t/sync-large-mail-box-on-nextcloud-mail-mailboxlockederror-with-mailcow-docker/243737 "2026-04-27T19:23:55Z")
Nextcloud Server version: 33.0.2 Operating system and version (e.g., Ubuntu 24.04): Ubuntu Server 24.04.4 Web server and version: I’m using Docker version nextcloud:33.0.2 Reverse proxy and version Traefik 3.6… --- ## [A backend for NC notes (IMAP) ?](https://help.nextcloud.com/t/a-backend-for-nc-notes-imap/229897)
**Author:** [@thomas.p](https://help.nextcloud.com/u/thomas.p)\ **Replies:** 10\ **Last updated:** [August 11, 2025, 7:02pm UTC](https://help.nextcloud.com/t/a-backend-for-nc-notes-imap/229897 "2025-08-11T19:02:25Z")
How to use any cloud backed notes app with NC ? I guess google notes are backed by IMAP, and notes.app for mac can read/write to such backend. Is such a thing planned in future NC improvements ? --- ## [Problem with IMAP connection to local MailCow server](https://help.nextcloud.com/t/problem-with-imap-connection-to-local-mailcow-server/228705)
**Author:** [@c-oolt](https://help.nextcloud.com/u/c-oolt)\ **Replies:** 4\ **Last updated:** [July 17, 2025, 12:34pm UTC](https://help.nextcloud.com/t/problem-with-imap-connection-to-local-mailcow-server/228705 "2025-07-17T12:34:41Z")
Hello group. I have NextCloud server running everything is working fine except the IMAP configuration of the mail client. When trying to log in to my local MailCow mail server I get an error: IMAP server is unreachable.… --- ## [Problem with Mail APP, can not delete mails](https://help.nextcloud.com/t/problem-with-mail-app-can-not-delete-mails/192771)
**Author:** [@mabox](https://help.nextcloud.com/u/mabox)\ **Replies:** 3\ **Last updated:** [June 19, 2024, 10:09am UTC](https://help.nextcloud.com/t/problem-with-mail-app-can-not-delete-mails/192771 "2024-06-19T10:09:56Z")
Hello, I have recently started working with the Mail APP in Nextcloud. I connect my mailboxes with IMAP. Everything works at the beginning, but at some point the inbox just stops synchronizing. Mails are still displaye… --- ## [Local IMAP Mailbox in Nextcloud](https://help.nextcloud.com/t/local-imap-mailbox-in-nextcloud/192210)
**Author:** [@mabox](https://help.nextcloud.com/u/mabox)\ **Replies:** 3\ **Last updated:** [May 13, 2024, 7:12pm UTC](https://help.nextcloud.com/t/local-imap-mailbox-in-nextcloud/192210 "2024-05-13T19:12:57Z")
Hello everyone, I am looking for a way to save my mailbox in Nextcloud. So in principle not a complete mail server but simply a local IMAP mailbox where my mails are stored. I would then like to access this IMAP mailbox… --- ## [PHP error related to Mail App when parsing IMAP message](https://help.nextcloud.com/t/php-error-related-to-mail-app-when-parsing-imap-message/187090)
**Author:** [@BetoCeni](https://help.nextcloud.com/u/BetoCeni)\ **Replies:** 0\ **Last updated:** [April 3, 2024, 1:41pm UTC](https://help.nextcloud.com/t/php-error-related-to-mail-app-when-parsing-imap-message/187090 "2024-04-03T13:41:45Z")
NC 28.0.3 Error message on logs: Out of memory (allocated 8602521600 bytes) (tried to allocate 17179869192 bytes) at /var/www/nextcloud/apps/mail/vendor/bytestream/horde-imap-client/lib/Horde/Imap/Client/Ids.php#366 D… --- ## [Configuring and provisioning IMAP for all accounts does not work](https://help.nextcloud.com/t/configuring-and-provisioning-imap-for-all-accounts-does-not-work/172184)
**Author:** [@mnoureldin](https://help.nextcloud.com/u/mnoureldin)\ **Replies:** 8\ **Last updated:** [January 27, 2024, 8:32pm UTC](https://help.nextcloud.com/t/configuring-and-provisioning-imap-for-all-accounts-does-not-work/172184 "2024-01-27T20:32:04Z")
Is it somehow possible to configure and provision IMAP for all accounts using OCC? I am trying to automate the installation, and want to configure the SMTP, IMAP and Sieve hosts and their information automatically using… --- ## [Mail sync failed - Mail server denied authentication](https://help.nextcloud.com/t/mail-sync-failed-mail-server-denied-authentication/154787)
**Author:** [@conzelmannth](https://help.nextcloud.com/u/conzelmannth)\ **Replies:** 6\ **Last updated:** [December 19, 2023, 8:54pm UTC](https://help.nextcloud.com/t/mail-sync-failed-mail-server-denied-authentication/154787 "2023-12-19T20:54:50Z")
Support introThe mail app does not load the message body. All mails are listed in the inbox and other mail folders. The email-subject, sender, date received, etc. is fully displayed. Instead of the message body (content… --- ## [Getting "IMAP server is not reachable" error on set up](https://help.nextcloud.com/t/getting-imap-server-is-not-reachable-error-on-set-up/146591)
**Author:** [@rainmaker33](https://help.nextcloud.com/u/rainmaker33)\ **Replies:** 4\ **Last updated:** [November 2, 2023, 5:21pm UTC](https://help.nextcloud.com/t/getting-imap-server-is-not-reachable-error-on-set-up/146591 "2023-11-02T17:21:56Z")
Hello! I am trying to connect to my email server and use nextcloud Mail app for emails. Some details about the installation: Dockerized installation Running behind nginx proxy Mail server is on a different server and n… --- ## [Integrating Nextcloud with a third-party full service email provider](https://help.nextcloud.com/t/integrating-nextcloud-with-a-third-party-full-service-email-provider/166651)
**Author:** [@brinycoolie](https://help.nextcloud.com/u/brinycoolie)\ **Replies:** 1\ **Last updated:** [August 15, 2023, 12:21am UTC](https://help.nextcloud.com/t/integrating-nextcloud-with-a-third-party-full-service-email-provider/166651 "2023-08-15T00:21:25Z")
I am a happy Nextcloud user and have been for a number of years. I am on 27.0.1 and my use case has been for files and notes up to now. Sharing between 3 family members. I have been thinking about broadening my useage t… --- ## [NC 26.0.2 breaks IMAP mail](https://help.nextcloud.com/t/nc-26-0-2-breaks-imap-mail/163698)
**Author:** [@RichardN](https://help.nextcloud.com/u/RichardN)\ **Replies:** 13\ **Last updated:** [June 18, 2023, 4:19pm UTC](https://help.nextcloud.com/t/nc-26-0-2-breaks-imap-mail/163698 "2023-06-18T16:19:37Z")
Support introSorry to hear you’re facing problems :slightly\_frowning\_face: help.nextcloud.com is for home/non-enterprise users. If you’re running a business, paid support can be accessed via portal.nextcloud.com where … --- ## [IMAP INBOX synchronization begins but it does not finish](https://help.nextcloud.com/t/imap-inbox-synchronization-begins-but-it-does-not-finish/153435)
**Author:** [@janspudich](https://help.nextcloud.com/u/janspudich)\ **Replies:** 0\ **Last updated:** [January 11, 2023, 2:10pm UTC](https://help.nextcloud.com/t/imap-inbox-synchronization-begins-but-it-does-not-finish/153435 "2023-01-11T14:10:04Z")
Nextcloud version: 25.0.2 Operating system and version: docker on Synology DSM 6.2.4 Apache or nginx version: Apache/2.4.54 (Debian) PHP version: 8.1.14 Situation I have installed Nextcloud on Synology using this do… --- ## [Mail App - Configration erstellen / kein Speichern möglich](https://help.nextcloud.com/t/mail-app-configration-erstellen-kein-speichern-moglich/148482)
**Author:** [@Fu6ge](https://help.nextcloud.com/u/Fu6ge)\ **Replies:** 0\ **Last updated:** [October 27, 2022, 12:56pm UTC](https://help.nextcloud.com/t/mail-app-configration-erstellen-kein-speichern-moglich/148482 "2022-10-27T12:56:19Z")
Hallo :slight\_smile: Ich möchte gerne unter Groupware - Mail App eine Provisioning Configurations erstellen und aktivieren - aber der Speichern Button funktioniert nicht bzw löst keine Action aus. OS: Ubuntu 22 Ne… --- ## [Problem with connect to imap folders w/o read permision](https://help.nextcloud.com/t/problem-with-connect-to-imap-folders-w-o-read-permision/129353)
**Author:** [@pni](https://help.nextcloud.com/u/pni)\ **Replies:** 3\ **Last updated:** [December 16, 2021, 2:46pm UTC](https://help.nextcloud.com/t/problem-with-connect-to-imap-folders-w-o-read-permision/129353 "2021-12-16T14:46:38Z")
Support introSorry to hear you’re facing problems :slightly\_frowning\_face: help.nextcloud.com is for home/non-enterprise users. If you’re running a business, paid support can be accessed via portal.nextcloud.com where … --- ## [Nextcloud 20.05 Email Access via IMAP not displaying previously read messages](https://help.nextcloud.com/t/nextcloud-20-05-email-access-via-imap-not-displaying-previously-read-messages/105145)
**Author:** [@tech101us](https://help.nextcloud.com/u/tech101us)\ **Replies:** 1\ **Last updated:** [January 23, 2021, 9:40am UTC](https://help.nextcloud.com/t/nextcloud-20-05-email-access-via-imap-not-displaying-previously-read-messages/105145 "2021-01-23T09:40:41Z")
Good Day. I have configured the NC integrated email client to access my IMAP based email services. Noticing that messages that I might have viewed previously in another email client (i.e. on a mobile device) are not show… --- ## [New IMAP directories don't appear in Nextcloud Mail](https://help.nextcloud.com/t/new-imap-directories-dont-appear-in-nextcloud-mail/100673)
**Author:** [@Ferdi265](https://help.nextcloud.com/u/Ferdi265)\ **Replies:** 2\ **Last updated:** [December 15, 2020, 10:21am UTC](https://help.nextcloud.com/t/new-imap-directories-dont-appear-in-nextcloud-mail/100673 "2020-12-15T10:21:28Z")
Hello! I’m using NextCloud 20.0.2 with Mail 1.7.1, connected to a MailCow instance via IMAP. The other clients to this Mail account are a Thunderbird and K9Mail. When I add a new subdirectory (say INBOX/foo), it appea… --- ## [IMAP sub-folders, are they supported?](https://help.nextcloud.com/t/imap-sub-folders-are-they-supported/63522)
**Author:** [@Taomyn](https://help.nextcloud.com/u/Taomyn)\ **Replies:** 2\ **Last updated:** [August 18, 2020, 8:52am UTC](https://help.nextcloud.com/t/imap-sub-folders-are-they-supported/63522 "2020-08-18T08:52:15Z")
I’ve just added my IMAP account to the Mail app in NC17, it’s working and showing me my Inbox, but it’s not displaying any of the sub-folders, or other root folders I have with my mail account. The server is an MDaemon m… --- ## [IMAP SSL/TLS Error](https://help.nextcloud.com/t/imap-ssl-tls-error/88365)
**Author:** [@jesus](https://help.nextcloud.com/u/jesus)\ **Replies:** 8\ **Last updated:** [July 28, 2020, 8:12pm UTC](https://help.nextcloud.com/t/imap-ssl-tls-error/88365 "2020-07-28T20:12:09Z")
Hi, I can not use SSL/TLS for my IMAP connection. The Error message is stream\_socket\_client(): SSL operation failed with code 1. OpenSSL Error messages: error:1425F102:SSL routines:ssl\_choose\_client\_version:unsupporte… --- ## [Replacement for PHP7 IMAP extension (required by user\_external)](https://help.nextcloud.com/t/replacement-for-php7-imap-extension-required-by-user-external/47751)
**Author:** [@DemoFreak](https://help.nextcloud.com/u/DemoFreak)\ **Replies:** 0\ **Last updated:** [February 17, 2019, 3:08pm UTC](https://help.nextcloud.com/t/replacement-for-php7-imap-extension-required-by-user-external/47751 "2019-02-17T15:08:39Z")
Hi all, as the PHP7 IMAP extension is dropped by package maintainers in OpenSUSE at least¹, I wondered what’s the official way to enable IMAP user authentication as of now. Do I have to build the extension manually or … --- ## [IMAP authentification & dovecot-2.3](https://help.nextcloud.com/t/imap-authentification-dovecot-2-3/32101)
**Author:** [@Thom1](https://help.nextcloud.com/u/Thom1)\ **Replies:** 5\ **Last updated:** [October 31, 2018, 10:58am UTC](https://help.nextcloud.com/t/imap-authentification-dovecot-2-3/32101 "2018-10-31T10:58:00Z")
Hi, I use nextcloud server (13.0.2) with IMAP authentification since a while successfully (dovecot-2.2 as imap server). Since I upgrade from dovecot-2.2 to dovecot-2.3, I have issue only with nextcloud (no issue with o… --- ## [Issue with log only IMAP?](https://help.nextcloud.com/t/issue-with-log-only-imap/38931)
**Author:** [@killmasta93](https://help.nextcloud.com/u/killmasta93)\ **Replies:** 6\ **Last updated:** [October 13, 2018, 10:25pm UTC](https://help.nextcloud.com/t/issue-with-log-only-imap/38931 "2018-10-13T22:25:14Z")
Hi, I was wondering if someone could shed some light on the issue im having. Trying to log only though IMAP as the email server i recently installed the version next cloud 14 cant seem to get it working this is my confi…