Can't send e-mails to Gmail adresses

Discuss
1

Hi,

It seems I can’t send mails to people using a Gmail adress. I receive back this e-mail:

This is the mail system at host xxx.org.

I’m sorry to have to inform you that your message could not
be delivered to one or more recipients. It’s attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

               The mail system

xxx@gmail.com: host gmail-smtp-in.l.google.com[2a00:1450:4025:401::1b]
said: 550-5.7.25 [2001:678:938:178::] The IP address sending this message
does not 550-5.7.25 have a PTR record setup, or the corresponding forward
DNS entry does 550-5.7.25 not match the sending IP. As a policy, Gmail does
not accept 550-5.7.25 messages from IPs with missing PTR records. For more
information, go 550-5.7.25 to 550-5.7.25
Email sender guidelines - Google Workspace Admin Help 550-5.7.25 To learn
more about Gmail requirements for bulk senders, visit 550 5.7.25
Email sender guidelines - Google Workspace Admin Help.
4fb4d7f45d1cf-6005ae45da2si33836a12.447 - gsmtp (in reply to end of DATA
command)

Do you know how I could solve this?

Thank you for any help.

2

You need to have the reverse DNS correctly setup. What said the diagnosis in the YunoHost WebAdmin ?

3

DNS records
1 warnings

Last time ran: 1 minute ago

Some DNS records are missing or incorrect for domain arnauld.org (category basic)

Please check the documentation at https://yunohost.org/dns_config if you need help configuring DNS records.
According to the recommended DNS configuration, you should add a DNS record with the following info.
Type: AAAA
Name: @
Value: 2001:678:938:178::
According to the recommended DNS configuration, you should add a DNS record with the following info.
Type: AAAA
Name: archivebox
Value: 2001:678:938:178::
According to the recommended DNS configuration, you should add a DNS record with the following info.
Type: AAAA
Name: birdnetpi
Value: 2001:678:938:178::
According to the recommended DNS configuration, you should add a DNS record with the following info.
Type: AAAA
Name: isso
Value: 2001:678:938:178::
According to the recommended DNS configuration, you should add a DNS record with the following info.
Type: AAAA
Name: paperless
Value: 2001:678:938:178::
According to the recommended DNS configuration, you should add a DNS record with the following info.
Type: AAAA
Name: radio
Value: 2001:678:938:178::

DNS records are correctly configured for domain arnauld.org (category mail)

DNS records are correctly configured for domain arnauld.org (category extra)

Your domains are registered and not going to expire anytime soon.

And

Port 5223 is not reachable from the outside.

4

And in the Email category of the diagnosis, you have no warnings ?

5

No, everything is ok in this category.

6

Strange that Gmail says that in this case…
Maybe you need first to correct your AAAA DNS entries, for yunohost to test reverse DNS in IPv6. Do you have a reverse DNS setup in ipv6 ?

7

Can you share the diagnosis link using the share button.
Try disabling ipv6 email in the webadmin

1 Like
8

https://paste.yunohost.org/raw/pazowojuwe

9

Thank you. I just tried.

When disabled I can send e-mails to gmail adresses and they are received. As I use a VPN from Franciliens.net I guess I should ask them for help…

10

Résolu grâce à Charly chez Franciliens qui m’a conseillé d’ajouter dans ma zone DNS chez mon registrar :

“arnauld.org. IN AAAA 2001:678:938:178::”

Merci rungeard et jarod5001 pour vos réponses.

1 Like