[SOLVED] connect to gmail-smtp-in.l.google.com[...]:25: Network is unreachable

[Shane]

Excellent! Issue solved with the following line in my main.cf

inet_protocols = ipv4

Aug 23 16:50:32 goblin postfix/smtp[13798]: connect to
gmail-smtp-in.l.google.com[2001:4860:8005::1b]:25: Network is unreachable

Someone has turned on IPv6 support, but your host has no IPv6
connectivity.
Postfix as distributed from Postfix.org does not turn on IPv6 support
unless the sysadmin says so.

relay=gmail-smtp-in.l.google.com[74.125.127.26]:25, delay=1.6,
delays=0.11/0.03/0.35/1.1, dsn=2.0.0, status=sent (250 2.0.0 O$

Postfix will try until it hits upon an IPv4 MX host.
Wietse

[Wietse Venema]

Post by Shane
Excellent! Issue solved with the following line in my main.cf
inet_protocols = ipv4

Postfix as distributed from postfix.org adds that by default.

Please complain to your maintainer if they turn on IPv6 for you.
Those idiots are causing all kinds of problems with email deliveries
on IPv4-only hosts, and are giving Postfix a bad reputation.

Wietse

[s***@gmail.com]

Post by Wietse Venema

Post by Shane
Excellent! Issue solved with the following line in my main.cf
inet_protocols = ipv4

Postfix as distributed from postfix.org adds that by default.
Please complain to your maintainer if they turn on IPv6 for you.
Those idiots are causing all kinds of problems with email deliveries
on IPv4-only hosts, and are giving Postfix a bad reputation.
Wietse

[c***@gmail.com]

Post by Wietse Venema

Post by Shane
Excellent! Issue solved with the following line in my main.cf
inet_protocols = ipv4

Postfix as distributed from postfix.org adds that by default.
Please complain to your maintainer if they turn on IPv6 for you.
Those idiots are causing all kinds of problems with email deliveries
on IPv4-only hosts, and are giving Postfix a bad reputation.
Wietse

[Benny Pedersen]

Post by Wietse Venema

Post by Shane
Excellent! Issue solved with the following line in my main.cf
inet_protocols = ipv4

Postfix as distributed from postfix.org adds that by default.

in 2.9.x this is not ipv4 but all

and there is a warnning if ipv4 is in main.cf (to reminds of ipv6) even
for kernels that dont have it

[Wietse Venema]

Benny Pedersen:
[ Charset UTF-8 unsupported, converting... ]

Post by Benny Pedersen

Post by Wietse Venema

Post by Shane
Excellent! Issue solved with the following line in my main.cf
inet_protocols = ipv4

Postfix as distributed from postfix.org adds that by default.

in 2.9.x this is not ipv4 but all

Postfix 2.9 edits main.cf and adds "inet_protocols = ipv4"
if you don't have an inet_protocols line in main.cf.

Wietse

[Benny Pedersen]

Post by Wietse Venema
Postfix 2.9 edits main.cf and adds "inet_protocols = ipv4"
if you don't have an inet_protocols line in main.cf.

why is this done ?, this is breaking that main.cf could be 100% empty
to get an postfix running as before, defaults hardcoded settings should
work imho, else there will be some users that dont understand why some
lines now must be in main.cf and some is just optional :/

the days of have all defaults not listed in main.cf is gone ?

[Wietse Venema]

Post by Wietse Venema
Postfix 2.9 edits main.cf and adds "inet_protocols = ipv4"
if you don't have an inet_protocols line in main.cf.

why is this done ? this is breaking that main.cf could be 100% empty

It is a forwards compatibility migration procedure.

And doing so breaks NOTHING: there is NO DOCUMENTED PROMISE
about running Postfix with empty main.cf file.

Wietse

[s***@gmail.com]

by default in my main.cf file I have
inet_protocols = all
and I'm getting the error described by the OT.

should I set ipv4 in that line?
if yes why?

Post by Shane
Excellent! Issue solved with the following line in my main.cf
inet_protocols = ipv4

Aug 23 16:50:32 goblin postfix/smtp[13798]: connect to
gmail-smtp-in.l.google.com[2001:4860:8005::1b]:25: Network is unreachable

Someone has turned on IPv6 support, but your host has no IPv6
connectivity.
Postfix as distributed from Postfix.org does not turn on IPv6 support
unless the sysadmin says so.

relay=gmail-smtp-in.l.google.com[74.125.127.26]:25, delay=1.6,
delays=0.11/0.03/0.35/1.1, dsn=2.0.0, status=sent (250 2.0.0 O$

Postfix will try until it hits upon an IPv4 MX host.
Wietse

[n***@starfox.20fr.com]

Post by s***@gmail.com
by default in my main.cf file I have
inet_protocols = all
and I'm getting the error described by the OT.
should I set ipv4 in that line?
if yes why?

I had the same problem, and my inet_protocols is also "= all", and I solved it in alpine by going to SETUP (S) -> Config (C) -> SMTP Server (for sending) and changed its value to:
smtp.gmail.com:587/tls/user=***@gmail.com
The change of this value was the addition of the port number (:587) for me.

I found the solution here:
https://groups.google.com/forum/#!topic/comp.mail.pine/_zViU0ZmNtw

[i***@student.waubonsee.edu]

Post by Shane
Excellent! Issue solved with the following line in my main.cf
inet_protocols = ipv4

Aug 23 16:50:32 goblin postfix/smtp[13798]: connect to
gmail-smtp-in.l.google.com[2001:4860:8005::1b]:25: Network is unreachable

Someone has turned on IPv6 support, but your host has no IPv6
connectivity.
Postfix as distributed from Postfix.org does not turn on IPv6 support
unless the sysadmin says so.

relay=gmail-smtp-in.l.google.com[74.125.127.26]:25, delay=1.6,
delays=0.11/0.03/0.35/1.1, dsn=2.0.0, status=sent (250 2.0.0 O$

Postfix will try until it hits upon an IPv4 MX host.
Wietse

[s***@gmail.com]

Post by Shane
Excellent! Issue solved with the following line in my main.cf
inet_protocols = ipv4

Aug 23 16:50:32 goblin postfix/smtp[13798]: connect to
gmail-smtp-in.l.google.com[2001:4860:8005::1b]:25: Network is unreachable

Someone has turned on IPv6 support, but your host has no IPv6
connectivity.
Postfix as distributed from Postfix.org does not turn on IPv6 support
unless the sysadmin says so.

relay=gmail-smtp-in.l.google.com[74.125.127.26]:25, delay=1.6,
delays=0.11/0.03/0.35/1.1, dsn=2.0.0, status=sent (250 2.0.0 O$

Postfix will try until it hits upon an IPv4 MX host.
Wietse

[a***@gmail.com]

***@gmail.com

[w***@gmail.com]

My bad dummy

[b***@gmail.com]

Post by Shane
Excellent! Issue solved with the following line in my main.cf
inet_protocols = ipv4

Aug 23 16:50:32 goblin postfix/smtp[13798]: connect to
gmail-smtp-in.l.google.com[2001:4860:8005::1b]:25: Network is unreachable

Someone has turned on IPv6 support, but your host has no IPv6
connectivity.
Postfix as distributed from Postfix.org does not turn on IPv6 support
unless the sysadmin says so.

relay=gmail-smtp-in.l.google.com[74.125.127.26]:25, delay=1.6,
delays=0.11/0.03/0.35/1.1, dsn=2.0.0, status=sent (250 2.0.0 O$

Postfix will try until it hits upon an IPv4 MX host.
Wietse

[c***@gmail.com]

Post by Shane
Excellent! Issue solved with the following line in my main.cf
inet_protocols = ipv4

Aug 23 16:50:32 goblin postfix/smtp[13798]: connect to
gmail-smtp-in.l.google.com[2001:4860:8005::1b]:25: Network is unreachable

Someone has turned on IPv6 support, but your host has no IPv6
connectivity.
Postfix as distributed from Postfix.org does not turn on IPv6 support
unless the sysadmin says so.

relay=gmail-smtp-in.l.google.com[74.125.127.26]:25, delay=1.6,
delays=0.11/0.03/0.35/1.1, dsn=2.0.0, status=sent (250 2.0.0 O$

Postfix will try until it hits upon an IPv4 MX host.
Wietse