Related

Can't install php-soap to my PHP 7.0 centos Question Question
cpu from 13% to 100% in one minute Question Question

Question

I need to build my own mail server. I want to know how to open 25 ports.

Posted April 11, 2018 2.5k views
CentOSMiscellaneousDebianEmailBillingCoreOSUbuntu 16.04

I need to build my own mail server. I want to know how to open 25 ports.

Add a comment
SeeAsura
By:
SeeAsura
Add a comment

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

×
2 answers
xMudrii April 11, 2018

To get port 25 opened for your account, you need to create a Support Ticket from your account.

Reply Report
ryanpq April 11, 2018

A small number of new accounts have SMTP blocks placed on them by an automated system based on a number of factors. If your account has an SMTP block you would not be able to connect to any service running on port 25 on a remote server. This can be tested using telnet.

If you are running a local firewall on Ubuntu you can temporarily disable it with the command service ufw stop to see if you can then connect.

Note that we do block SMTP on ALL ipv6 addresses. If you are using ipv6 on your droplet you may need to configure your mail agent to ensure that all SMTP traffic is sent over ipv4.

Reply Report
Submit an Answer

Related

Looking for something else?

Ask a new question Search for more help