Solved

connect to alt1.aspmx.l.google.com[2a00:1450:400c:c00::1a]:25: Network is unreachable

Posted on 2013-06-08
5
2,373 Views
Last Modified: 2014-11-12
Hi

I have following errors in my PostFix mail queue and not able to send emails to Gmail/Google Apps users. Every other domain is receiving just fine.

	462083F91AC	2013/06/08 15:23		567 bytes	connect to alt1.aspmx.l.google.com[2a00:1450:400c:c00::1a]:25: Network is unreachable
	8EFDC3F91AB	2013/06/08 15:19		567 bytes	connect to aspmx3.googlemail.com[2a00:1450:4013:c00::1a]:25: Network is unreachable
	9A53A3F91AD	2013/06/08 15:23		568 bytes	connect to aspmx2.googlemail.com[2a00:1450:400c:c05::1b]:25: Network is unreachable 

Open in new window


My server is hosted with ovh.com (Dedicated Server).

I am able to ping aspmx2.googlemail.com. See below:

ping aspmx2.googlemail.com
PING aspmx2.googlemail.com (173.194.66.27) 56(84) bytes of data.
64 bytes from we-in-f27.1e100.net (173.194.66.27): icmp_seq=1 ttl=46 time=97.7 ms
64 bytes from we-in-f27.1e100.net (173.194.66.27): icmp_seq=2 ttl=46 time=97.7 ms
64 bytes from we-in-f27.1e100.net (173.194.66.27): icmp_seq=3 ttl=46 time=97.7 ms
^C
--- aspmx2.googlemail.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2139ms
rtt min/avg/max/mdev = 97.726/97.746/97.780/0.024 ms

Open in new window


I am able to telnet aspmx2.googlemail.com. See below:

telnet aspmx2.googlemail.com 25
Trying 173.194.66.27...
Connected to aspmx2.googlemail.com.
Escape character is '^]'.
220 mx.google.com ESMTP f5si1112554wix.36 - gsmtp

Open in new window


Any help will be much appreciated.
0
Comment
Question by:sysautomation
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
5 Comments
 
LVL 10

Expert Comment

by:Sam Simon Nasser
ID: 39232070
check here if your mail server is being blocked by google, this happen if one of the emails send spams.
http://www.rackaid.com/resources/gmail-blacklist-removal/
usually it takes 2 days for the IP to be remived from the blacklist ...

if your mail server ip is not in the black list, then we will move to something else.
0
 
LVL 14

Expert Comment

by:Allen Falcon
ID: 39232979
If you are being blocked by Google for spam, you will need to make sure you are not sending out spam (scan all of your systems for bots) and that your SPF records are in place and correct.

If they go to delist you and your domain is not clean and ready, they will drop the request and future requests will be delayed.
0
 

Author Comment

by:sysautomation
ID: 39233022
I feel this is related to some IPV6 configuration. The message unreachable does not show this is blocked by google.
0
 

Accepted Solution

by:
sysautomation earned 0 total points
ID: 39236772
I specified inet_protocols = ipv4 in postfix configuration and everything started working now.
0
 

Author Closing Comment

by:sysautomation
ID: 39249771
inet_protocols = ipv4
0

Featured Post

Enroll in May's Course of the Month

May’s Course of the Month is now available! Experts Exchange’s Premium Members and Team Accounts have access to a complimentary course each month as part of their membership—an extra way to increase training and boost professional development.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Using Google Drive sync app on a network folder 5 52
SMTP log file for IMSVA 5 75
Exchange 2010 Global Calendar Permissions 2 55
phpmyadmin memory error 55 96
Resolve Outlook connectivity issues after moving mailbox to new Exchange 2016 server
In the first part of this tutorial we will cover the prerequisites for installing SQL Server vNext on Linux.
This Micro Tutorial demonstrates the importance of annotations in Google Analytics and how they should be used to document changes made to a site, Google updates (Ex: Panda & Penguin), marketing campaigns, and any other events that might have contri…
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.

752 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question