# Connecting delta chat to offline mail service hmail server **URL:** \ **Category:** Mutual Help\ **Created:** [February 14, 2025, 8:00pm UTC](https://forum.delta.chat/t/connecting-delta-chat-to-offline-mail-service-hmail-server/3569 "2025-02-14T20:00:42Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![proginvert](https://forum.delta.chat/letter_avatar_proxy/v4/letter/p/ec9cab/32.png) [@proginvert](https://forum.delta.chat/u/proginvert)\ **Post date:** [February 14, 2025, 8:00pm UTC](https://forum.delta.chat/t/connecting-delta-chat-to-offline-mail-service-hmail-server/3569/1 "2025-02-14T20:00:42Z")
Hello, I’m trying to connect to my mail server at 127.0.0.1 running through the SMTP server node. When entering the data [login:test@127.0.0.1](mailto:login:test@127.0.0.1) password:test, the server side doesn’t even display an attempt to connect, and the chat itself gives an error after a minute: the server was not found, check your internet connection. [![](https://i.ibb.co/6R4KzHcb/bandicam-2025-02-14-15-50-18-497.jpg)](https://imgbb.com/) Does the chat work in an offline environment, without an internet connection, and does it require a valid mail server certificate? (process.env.NODE\_TLS\_REJECT\_UNAUTHORIZED = ‘0’😉 ---
**Author:** ![Simon](https://forum.delta.chat/user_avatar/forum.delta.chat/simon/32/287_2.png) [@Simon](https://forum.delta.chat/u/Simon)\ **Post date:** [February 14, 2025, 8:47pm UTC](https://forum.delta.chat/t/connecting-delta-chat-to-offline-mail-service-hmail-server/3569/2 "2025-02-14T20:47:07Z")
I’m not sure what you are doing here, if you mean [https://nodemailer.com](https://nodemailer.com) I think that is a library only for sending email (can it even act as an smtp server?). For delta chat you need both IMAP (for receiving) and SMTP (for sending). ---
**Author:** ![proginvert](https://forum.delta.chat/letter_avatar_proxy/v4/letter/p/ec9cab/32.png) [@proginvert](https://forum.delta.chat/u/proginvert)\ **Post date:** [February 15, 2025, 3:45am UTC](https://forum.delta.chat/t/connecting-delta-chat-to-offline-mail-service-hmail-server/3569/3 "2025-02-15T03:45:05Z")
I’m talking about this smtp server: [SMTP Server :: Nodemailer](https://www.nodemailer.com/extras/smtp-server/) while I was figuring it out, I found out that I also need IMAP. At the moment I’m also considering the hmail server [https://www.hmailserver.com/](https://www.hmailserver.com/) which has IMAP and smtp. I would gladly install mailcow, but it doesn’t seem to work under Windows, and requires docker, and for me these are 2 main conditions, for Windows and without docker. Are there any mail servers that comply with these 2 conditions and work with your chat? ---
**Author:** ![proginvert](https://forum.delta.chat/letter_avatar_proxy/v4/letter/p/ec9cab/32.png) [@proginvert](https://forum.delta.chat/u/proginvert)\ **Post date:** [February 15, 2025, 11:19am UTC](https://forum.delta.chat/t/connecting-delta-chat-to-offline-mail-service-hmail-server/3569/4 "2025-02-15T11:19:44Z")
managed to connect via hmail server, here are my settings [![](https://i.ibb.co/39WNwMgj/bandicam-2025-02-15-14-18-35-978.jpg)](https://imgbb.com/) [![](https://i.ibb.co/bZ2kK2H/bandicam-2025-02-15-14-18-47-128.jpg)](https://imgbb.com/) I’ll test it for now. If anyone is interested, I installed it using this guide: [Roundcube + hMailServer или своя почта в маленькой организации / Хабр](https://habr.com/ru/articles/131179/) The only thing I used instead of VertrigoServ was Open Server Panel ---
**Author:** ![Simon](https://forum.delta.chat/user_avatar/forum.delta.chat/simon/32/287_2.png) [@Simon](https://forum.delta.chat/u/Simon)\ **Post date:** [February 15, 2025, 7:21pm UTC](https://forum.delta.chat/t/connecting-delta-chat-to-offline-mail-service-hmail-server/3569/5 "2025-02-15T19:21:14Z")
[GitHub - mjl-/mox: modern full-featured open source secure mail server for low-maintenance self-hosted email](https://github.com/mjl-/mox) and [GitHub - stalwartlabs/mail-server: Secure & Modern All-in-One Mail Server (IMAP, JMAP, POP3, SMTP)](https://github.com/stalwartlabs/mail-server) are the hot new things and should work (go and rust can both be compiled for windows). But in the end any decent mail server that supports IMAP and SMTP should work ---
**Author:** ![r10s](https://forum.delta.chat/user_avatar/forum.delta.chat/r10s/32/1513_2.png) [@r10s](https://forum.delta.chat/u/r10s)\ **Post date:** [October 6, 2026, 3:20pm UTC](https://forum.delta.chat/t/connecting-delta-chat-to-offline-mail-service-hmail-server/3569/6 "2026-10-06T15:20:07Z")