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Question

why are my outgoing ipv4 connections to port 25 blocked?

Posted March 9, 2020 172

Ubuntu

I installed postfix to send notifications with system information. And i get error in my logs:

 postfix/smtp[3687]: connect to gmail-smtp-in.l.google.com[74.125.195.26]:25: Connection timed out

Uptime of my system about 8month

By:

strelokvc

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1 answer

bangkok4ucom March 10, 2020

I was and have asked the staff. Not yet received an answer (gmail / hotmail)

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bangkok4ucom March 10, 2020

message from hotmail: centos-s-12vcpu-48gb-sgp1-01 rejected your message to the following email addresses:

message from gmail: The response from the remote server was:
550 authentication required
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