# \#mail-receiver

**URL:** https://meta.discourse.org/tag/mail-receiver/562.md

[Latest](https://meta.discourse.org/latest.md) · [Categories](https://meta.discourse.org/categories.md) · [Tags](https://meta.discourse.org/tags.md)

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## [Discourse/mail-receiver:release Docker image appears to be outdated](https://meta.discourse.org/t/discourse-mail-receiver-release-docker-image-appears-to-be-outdated/411734)

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**Author:** [@scavin](https://meta.discourse.org/u/scavin)\
**Replies:** 5\
**Last updated:** [September 7, 2026, 2:50pm UTC](https://meta.discourse.org/t/discourse-mail-receiver-release-docker-image-appears-to-be-outdated/411734 "2026-09-07T14:50:16Z")

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Hi, I think the official discourse/mail-receiver:release Docker image may have been overlooked and has not been rebuilt for quite some time. The GitHub repository is still actively maintained: However, the official …

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## [Incoming emails with signatures/tables/inline images rejected with “Access Denied”](https://meta.discourse.org/t/incoming-emails-with-signatures-tables-inline-images-rejected-with-access-denied/409538)

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**Author:** [@Ethsim2](https://meta.discourse.org/u/Ethsim2)\
**Replies:** 1\
**Last updated:** [August 11, 2026, 1:35pm UTC](https://meta.discourse.org/t/incoming-emails-with-signatures-tables-inline-images-rejected-with-access-denied/409538 "2026-08-11T13:35:42Z")

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I am seeing incoming emails rejected by Discourse with: Email can not be processed: Access Denied Incoming email itself appears to be working correctly. The message reaches the mail receiver, and SPF, DKIM and DMARC al…

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## [Mail-receiver deprecation warning on 'email' parameter](https://meta.discourse.org/t/mail-receiver-deprecation-warning-on-email-parameter/363900)

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**Author:** [@textkit](https://meta.discourse.org/u/textkit)\
**Replies:** 2\
**Last updated:** [August 11, 2026, 1:32pm UTC](https://meta.discourse.org/t/mail-receiver-deprecation-warning-on-email-parameter/363900 "2026-08-11T13:32:17Z")

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I’ve installed the discourse mail-receiver to allow replies by email on my self-hosted site. I get the following deprecation warning in the logs. Deprecation notice: warning: the email parameter is deprecated. all POST …

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## [2 emails rejected by 2026.4.0-latest ( 5f0d95e1f1 )](https://meta.discourse.org/t/2-emails-rejected-by-2026-4-0-latest-5f0d95e1f1/400152)

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**Author:** [@Ethsim2](https://meta.discourse.org/u/Ethsim2)\
**Replies:** 4\
**Last updated:** [April 15, 2026, 8:26pm UTC](https://meta.discourse.org/t/2-emails-rejected-by-2026-4-0-latest-5f0d95e1f1/400152 "2026-04-15T20:26:53Z")

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Hi, I’m seeing an intermittent inbound email processing failure on a self-hosted site using mail-receiver. What happened Two separate inbound emails: were delivered to the correct Discourse address appear in /admin/em…

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## [Email receive issue](https://meta.discourse.org/t/email-receive-issue/374615)

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**Author:** [@Ethsim2](https://meta.discourse.org/u/Ethsim2)\
**Replies:** 29\
**Last updated:** [April 13, 2026, 2:27pm UTC](https://meta.discourse.org/t/email-receive-issue/374615 "2026-04-13T14:27:11Z")

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Hi Discourse, after rebuilding mail-receiver and app this morning, i have been getting the following outcome on email that would have sent previously

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## [Mail-receiver doesn't work with with some email sources](https://meta.discourse.org/t/mail-receiver-doesnt-work-with-with-some-email-sources/349243)

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**Author:** [@kmdalton](https://meta.discourse.org/u/kmdalton)\
**Replies:** 6\
**Last updated:** [April 3, 2026, 6:25pm UTC](https://meta.discourse.org/t/mail-receiver-doesnt-work-with-with-some-email-sources/349243 "2026-04-03T18:25:10Z")

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I’m really struggling to get the mail-receiver container to work reliably. I’m at the point where it works as intended for replies sent from my personal GMail account, but it rejects emails sent from my employer’s office…

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## [Configure direct-delivery incoming email for self-hosted sites with Mail-Receiver](https://meta.discourse.org/t/configure-direct-delivery-incoming-email-for-self-hosted-sites-with-mail-receiver/49487)

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**Author:** [@Discourse](https://meta.discourse.org/u/Discourse)\
**Replies:** 76\
**Last updated:** [March 27, 2026, 1:20am UTC](https://meta.discourse.org/t/configure-direct-delivery-incoming-email-for-self-hosted-sites-with-mail-receiver/49487 "2026-03-27T01:20:21Z")

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Discourse is all about enabling civilized discussion. While plenty of people like a web interface, e-mail is still the “hub” of many people’s online lives. That’s why sending e-mail is so important, and when you’re sen…

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## [Do i need to rebuild mail-receiver?](https://meta.discourse.org/t/do-i-need-to-rebuild-mail-receiver/392613)

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**Author:** [@Ethsim2](https://meta.discourse.org/u/Ethsim2)\
**Replies:** 1\
**Last updated:** [January 3, 2026, 2:30pm UTC](https://meta.discourse.org/t/do-i-need-to-rebuild-mail-receiver/392613 "2026-01-03T14:30:24Z")

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## [Self-Hosting - When to Rebuild mail-receiver?](https://meta.discourse.org/t/self-hosting-when-to-rebuild-mail-receiver/389629)

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**Author:** [@denvergeeks](https://meta.discourse.org/u/denvergeeks)\
**Replies:** 1\
**Last updated:** [November 25, 2025, 8:42pm UTC](https://meta.discourse.org/t/self-hosting-when-to-rebuild-mail-receiver/389629 "2025-11-25T20:42:53Z")

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I self-host a number of Discourse instances using mail-receiver. I noticed the conversation below, and am wondering – do I need to Rebuild the mail-receiver.yml files for these sites?

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## [Seeing smtp\_should\_reject "400 bad request" failures on bounce processing](https://meta.discourse.org/t/seeing-smtp-should-reject-400-bad-request-failures-on-bounce-processing/387431)

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**Author:** [@DevTeVe](https://meta.discourse.org/u/DevTeVe)\
**Replies:** 13\
**Last updated:** [November 24, 2025, 5:32pm UTC](https://meta.discourse.org/t/seeing-smtp-should-reject-400-bad-request-failures-on-bounce-processing/387431 "2025-11-24T17:32:55Z")

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Hi! I am basically having the exact same issue described here: Configure direct-delivery incoming email for self-hosted sites with Mail-Receiver - #482 by Carleas The problem seems to be that the bounces I am receiving…

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## [Doc clarification: notification behaviour for staged users when posts are moved](https://meta.discourse.org/t/doc-clarification-notification-behaviour-for-staged-users-when-posts-are-moved/382357)

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**Author:** [@Ethsim2](https://meta.discourse.org/u/Ethsim2)\
**Replies:** 1\
**Last updated:** [September 11, 2025, 6:53pm UTC](https://meta.discourse.org/t/doc-clarification-notification-behaviour-for-staged-users-when-posts-are-moved/382357 "2025-09-11T18:53:32Z")

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What is the issue? The discourse around staged users implies they will receive email notifications for replies to topics where they’ve posted by email. However, when their post is moved to another topic by a moderator, …

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## [Doc clarification: reply-key addresses in Cc (not just To) are processed](https://meta.discourse.org/t/doc-clarification-reply-key-addresses-in-cc-not-just-to-are-processed/382325)

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**Author:** [@Ethsim2](https://meta.discourse.org/u/Ethsim2)\
**Replies:** 0\
**Last updated:** [September 11, 2025, 2:14pm UTC](https://meta.discourse.org/t/doc-clarification-reply-key-addresses-in-cc-not-just-to-are-processed/382325 "2025-09-11T14:14:39Z")

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While reading and testing against the doc Configure direct-delivery incoming email for self-hosted sites with mail-receiver, I noticed that one detail is missing: how Discourse handles the location of the reply-key addre…

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## [Mail-receiver lacks an official ARM-compatible image](https://meta.discourse.org/t/mail-receiver-lacks-an-official-arm-compatible-image/352154)

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**Author:** [@Canapin](https://meta.discourse.org/u/Canapin)\
**Replies:** 2\
**Last updated:** [August 22, 2025, 12:54am UTC](https://meta.discourse.org/t/mail-receiver-lacks-an-official-arm-compatible-image/352154 "2025-08-22T00:54:28Z")

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Continuing the discussion from Does the mail-receiver work with arm?: It has been mentioned a couple of times on meta, but I guess it’s better if it has its own Contribute \> Feature request topic. Discourse works great…

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## [Does the mail-receiver work with arm?](https://meta.discourse.org/t/does-the-mail-receiver-work-with-arm/283908)

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**Author:** [@PrettyGirl](https://meta.discourse.org/u/PrettyGirl)\
**Replies:** 14\
**Last updated:** [August 22, 2025, 12:53am UTC](https://meta.discourse.org/t/does-the-mail-receiver-work-with-arm/283908 "2025-08-22T00:53:02Z")

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I’m in ARM architecture and it throws errors at the above command. I guess this plugin is not suitable for arm? Is there any other plugin to receive mails for arms?

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## [📬 Repeated Postfix warnings and connections after valid\_recipients implementation](https://meta.discourse.org/t/repeated-postfix-warnings-and-connections-after-valid-recipients-implementation/375427)

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**Author:** [@Ethsim2](https://meta.discourse.org/u/Ethsim2)\
**Replies:** 2\
**Last updated:** [July 23, 2025, 4:31pm UTC](https://meta.discourse.org/t/repeated-postfix-warnings-and-connections-after-valid-recipients-implementation/375427 "2025-07-23T16:31:21Z")

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Continuing the discussion from Email receive issue: I implemented valid\_recipients filtering via postfix/valid\_recipients and populated /etc/postfix/valid\_recipients. Since then, I’m seeing repeated warnings and inbound…

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## [Arm64](https://meta.discourse.org/t/arm64/374821)

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**Author:** [@Ethsim2](https://meta.discourse.org/u/Ethsim2)\
**Replies:** 1\
**Last updated:** [July 18, 2025, 5:00pm UTC](https://meta.discourse.org/t/arm64/374821 "2025-07-18T17:00:55Z")

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Continuing the discussion from I'm getting errors when I switch categories too quickly: am i right in thinking mail-receiver doesn’t work on ARM64 architecture?

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## [2 Emails stuck in mailq](https://meta.discourse.org/t/2-emails-stuck-in-mailq/371320)

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**Author:** [@Ethsim2](https://meta.discourse.org/u/Ethsim2)\
**Replies:** 2\
**Last updated:** [June 23, 2025, 12:12pm UTC](https://meta.discourse.org/t/2-emails-stuck-in-mailq/371320 "2025-06-23T12:12:09Z")

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Hello, I have run cd /var/discourse .\\launcher enter mail-receiver mailq and it shows for the last 2 hours 2 emails are stuck in the queue, (temporary failure) i then run tail -f /shared/log/rails/production.log …

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## [Mail-Receiver Configuration: 403 Error on smtp\_should\_reject Endpoint](https://meta.discourse.org/t/mail-receiver-configuration-403-error-on-smtp-should-reject-endpoint/353303)

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**Author:** [@Abdelrahman\_MoHamed](https://meta.discourse.org/u/Abdelrahman_MoHamed)\
**Replies:** 1\
**Last updated:** [February 20, 2025, 11:46am UTC](https://meta.discourse.org/t/mail-receiver-configuration-403-error-on-smtp-should-reject-endpoint/353303 "2025-02-20T11:46:37Z")

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Hello Discourse Community, I’m encountering an issue while setting up the mail-receiver for my self-hosted Discourse forum. Despite following the official documentation here, I’m receiving the following error in my logs…

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## [Mail-receiver relay access denied](https://meta.discourse.org/t/mail-receiver-relay-access-denied/145690)

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**Author:** [@Andro](https://meta.discourse.org/u/Andro)\
**Replies:** 21\
**Last updated:** [January 26, 2025, 6:34pm UTC](https://meta.discourse.org/t/mail-receiver-relay-access-denied/145690 "2025-01-26T18:34:13Z")

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Trying hard to enable replies by email using the mail-receiver container. I consistently get errors: NOQUEUE: reject: RCPT from ... 454 4.7.1 \<...\>: Relay access denied Why is this? How can I get into the mail-receiver…

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## [Can a single Mail Receiver handle emails for all sites in a Discourse multisite setup?](https://meta.discourse.org/t/can-a-single-mail-receiver-handle-emails-for-all-sites-in-a-discourse-multisite-setup/345667)

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**Author:** [@Abdelrahman\_MoHamed](https://meta.discourse.org/u/Abdelrahman_MoHamed)\
**Replies:** 14\
**Last updated:** [January 7, 2025, 1:45pm UTC](https://meta.discourse.org/t/can-a-single-mail-receiver-handle-emails-for-all-sites-in-a-discourse-multisite-setup/345667 "2025-01-07T13:45:53Z")

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We are currently running Discourse with a multisite setup, and we plan to use the Mail Receiver for email handling. I have a question about the configuration: Is it possible to configure a single Mail Receiver container…

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## [Bounces not being received in Discourse with local Postfix server](https://meta.discourse.org/t/bounces-not-being-received-in-discourse-with-local-postfix-server/325244)

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**Author:** [@Andro](https://meta.discourse.org/u/Andro)\
**Replies:** 2\
**Last updated:** [December 9, 2024, 8:23am UTC](https://meta.discourse.org/t/bounces-not-being-received-in-discourse-with-local-postfix-server/325244 "2024-12-09T08:23:11Z")

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Starting a new topic in this as responses to a similar thing in another topic seem to have petered out. I have Discourse running with mail-receiver. For outbound mail I have Postifx using port 587 for submissions. Mail-…

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## [ERROR: Can't find Ruby library file or shared library pups](https://meta.discourse.org/t/error-cant-find-ruby-library-file-or-shared-library-pups/230438)

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**Author:** [@Jonathan5](https://meta.discourse.org/u/Jonathan5)\
**Replies:** 3\
**Last updated:** [November 19, 2024, 11:00am UTC](https://meta.discourse.org/t/error-cant-find-ruby-library-file-or-shared-library-pups/230438 "2024-11-19T11:00:54Z")

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Running ./launcher rebuild mail-receiver today I saw: Status: Downloaded newer image for discourse/mail-receiver:release docker.io/discourse/mail-receiver:release ERROR: Can't find Ruby library file or shared library p…

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## [Mail-Receiver - public email address, do I need to worry about Spam?](https://meta.discourse.org/t/mail-receiver-public-email-address-do-i-need-to-worry-about-spam/322643)

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**Author:** [@tkforbes](https://meta.discourse.org/u/tkforbes)\
**Replies:** 4\
**Last updated:** [August 21, 2024, 10:19pm UTC](https://meta.discourse.org/t/mail-receiver-public-email-address-do-i-need-to-worry-about-spam/322643 "2024-08-21T22:19:56Z")

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Description of regular, non-Discourse flow. Presently (completely independent of Discourse), I use a published email address as an alias that sends an inquiry email message to a number of email addresses. The group rely …

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## [Trying to setup direct delivery of incoming email and new topic by email](https://meta.discourse.org/t/trying-to-setup-direct-delivery-of-incoming-email-and-new-topic-by-email/310674)

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**Author:** [@M\_Cheseldm](https://meta.discourse.org/u/M_Cheseldm)\
**Replies:** 4\
**Last updated:** [June 5, 2024, 7:34pm UTC](https://meta.discourse.org/t/trying-to-setup-direct-delivery-of-incoming-email-and-new-topic-by-email/310674 "2024-06-05T19:34:05Z")

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I am attempting to configure reply by email and create a new post by email. I would greatly appreciate any help. I have setup the mail-receiver container and have successfully bootstrapped without error on my self host…

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## [Mail Receiver setup](https://meta.discourse.org/t/mail-receiver-setup/307590)

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**Author:** [@Architect](https://meta.discourse.org/u/Architect)\
**Replies:** 1\
**Last updated:** [May 10, 2024, 10:51pm UTC](https://meta.discourse.org/t/mail-receiver-setup/307590 "2024-05-10T22:51:27Z")

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Have a problem with mail receiver won’t rebuild, log: :/var/discourse# /var/discourse/launcher rebuild mail-receiver x86\_64 arch detected. Ensuring launcher is up to date Launcher is up-to-date Stopping old container + …

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## [No email sending suddenly, DigitalOcean MailJet](https://meta.discourse.org/t/no-email-sending-suddenly-digitalocean-mailjet/304835)

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**Author:** [@anon82911141](https://meta.discourse.org/u/anon82911141)\
**Replies:** 3\
**Last updated:** [April 22, 2024, 5:18pm UTC](https://meta.discourse.org/t/no-email-sending-suddenly-digitalocean-mailjet/304835 "2024-04-22T17:18:06Z")

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Hi, All of my emails suddenly stopped sending. No clue how this happened, no changes were made. Sidekiq: Jobs::HandledExceptionWrapper: Wrapped EOFError: end of file reached Jobs::HandledExceptionWrapper: Wrapped Errn…

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## [Set up mail-receiver, but now site won't send any emails?](https://meta.discourse.org/t/set-up-mail-receiver-but-now-site-wont-send-any-emails/283817)

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**Author:** [@ToddZ](https://meta.discourse.org/u/ToddZ)\
**Replies:** 11\
**Last updated:** [September 30, 2023, 12:47am UTC](https://meta.discourse.org/t/set-up-mail-receiver-but-now-site-wont-send-any-emails/283817 "2023-09-30T00:47:29Z")

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Hm. I have the same Vultr setup as @MathiasFoster and @jryans here, and I ran into the same (Net::OpenTimeout) issue. ufw allow https got my incoming email working. But now the site won’t send any mail. Before setting u…

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## [Could mail-receiver be tweaked to handle outgoing mail?](https://meta.discourse.org/t/could-mail-receiver-be-tweaked-to-handle-outgoing-mail/283816)

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**Author:** [@inquiry](https://meta.discourse.org/u/inquiry)\
**Replies:** 3\
**Last updated:** [September 19, 2023, 4:13pm UTC](https://meta.discourse.org/t/could-mail-receiver-be-tweaked-to-handle-outgoing-mail/283816 "2023-09-19T16:13:17Z")

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Thank you for taking the effort to write this guide. I wonder if with slight modification could be adapted to host the outgoing email too. I see this guide which isn’t very complicated but it seems redundant to have one…

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## ['Failed to POST the e-mail' error for mail-receiver](https://meta.discourse.org/t/failed-to-post-the-e-mail-error-for-mail-receiver/283815)

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**Author:** [@jbrains](https://meta.discourse.org/u/jbrains)\
**Replies:** 3\
**Last updated:** [September 5, 2023, 2:22pm UTC](https://meta.discourse.org/t/failed-to-post-the-e-mail-error-for-mail-receiver/283815 "2023-09-05T14:22:00Z")

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I’m trying to follow these instructions and I’ve ended up with this error: \<23\>Sep 5 13:40:39 receive-mail\[131\]: Recipient: nobody@experience-forum.jbrains.ca \<19\>Sep 5 13:40:39 receive-mail\[131\]: Failed to POST the e…

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## [Issue with mail-receiver and self-signed certificate?](https://meta.discourse.org/t/issue-with-mail-receiver-and-self-signed-certificate/283814)

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**Author:** [@sjjh](https://meta.discourse.org/u/sjjh)\
**Replies:** 3\
**Last updated:** [May 31, 2023, 1:22am UTC](https://meta.discourse.org/t/issue-with-mail-receiver-and-self-signed-certificate/283814 "2023-05-31T01:22:23Z")

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I’m trying to set up incoming email for a self-hosted discourse instance behind a reverse proxy (http(s), SMTP). Public domain: public.example.com, host behind reverse proxy: internal.example.com. I followed this manual …

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