1 Topic by surixx (edited by surixx 2021-04-16 21:10:41)

  • surixx
  • surixx
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Topic: prot 25 blocked by my isp. No outgoi9ng mails, only incoming working.

==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release):  1.4.0 Apr 21
- Deployed with iRedMail Easy or the downloadable installer? downloadable installer
- Linux/BSD distribution name and version: Ubuntu 20.04 LTS
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):  MySQL
- Web server (Apache or Nginx): Nginx
- Manage mail accounts with iRedAdmin-Pro? no
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====

Hi Iread Team.
I have configured a new iredmail server and things are fine except no outbound mails are going. Since ISP has blocked port 25. incoming mails are coming fine. Kindly request you to give me a solution for this. Kindly excuse me if its duplicate issue, searched a lot and dint find any. i have only one mail server to change things. no forwarders. Thanks in advance.

----

Spider Email Archiver: On-Premises, lightweight email archiving software developed by iRedMail team. Supports Amazon S3 compatible storage and custom branding.

2 Reply by GerryM (edited by GerryM 2021-04-16 23:26:55)

  • GerryM
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Re: prot 25 blocked by my isp. No outgoi9ng mails, only incoming working.

Do you have email with your ISP? Most ISPs block users from sending SMTP port 25, but users can authenticate and send with SMTP port 583. Check https://docs.iredmail.org/relayhost.html for configuration info. I had to set up my relay host with:
   [smtp.example.com]:587
and create  sasl_password with:
   user@example.com:myP@ssw0rd

iRedMail document talks only about port 25, but this works with port 587 as well.

3 Reply by surixx (edited by surixx 2021-04-17 06:40:05)

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Re: prot 25 blocked by my isp. No outgoi9ng mails, only incoming working.

Hi GerryM, the volume of my mail is going to be huge and i have only one server in my pocket. I don't have email service with my ISP. Cant go for another relay service. So only i had mentioned i have single Server. kindly let me know incase we can change the outgoing port number to something other than 25. Thanks for your reply.


GerryM wrote:

Do you have email with your ISP? Most ISPs block users from sending SMTP port 25, but users can authenticate and send with SMTP port 583. Check https://docs.iredmail.org/relayhost.html for configuration info. I had to set up my relay host with:
   [smtp.example.com]:587
and create  sasl_password with:
   user@example.com:myP@ssw0rd

iRedMail document talks only about port 25, but this works with port 587 as well.

4 Reply by GerryM

  • GerryM
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Re: prot 25 blocked by my isp. No outgoi9ng mails, only incoming working.

Check with your ISP if they can open port 25. Many times they will do this if you have a static ip.