Unable to send email to google workspace

[Aliza]

This is the mail system at host relay.mailchannels.net.

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

<[email protected]>: host gmail-smtp-in.l.google.com[74.125.142.27]
said: 550-5.7.26 This mail has been blocked because the sender is
unauthenticated. 550-5.7.26 Gmail requires all senders to authenticate with
either SPF or DKIM. 550-5.7.26 550-5.7.26 Authentication results:
550-5.7.26 DKIM = did not pass 550-5.7.26 SPF [sgc.edu.ph] with ip:
[23.83.209.80] = did not pass 550-5.7.26 550-5.7.26 For instructions on
setting up authentication, go to 550 5.7.26
https://support.google.com/mail/answer/81126#authentication
b13-20020a170902650d00b001e435d95c63si2633606plk.315 - gsmtp (in reply to
end of DATA command)
Reporting-MTA: dns; relay.mailchannels.net
X-Postfix-Queue-ID: 59FDD6C0803
X-Postfix-Sender: rfc822; [email protected]
Arrival-Date: Fri, 19 Apr 2024 06:41:36 +0000 (UTC)

Final-Recipient: rfc822; [email protected]
Original-Recipient: rfc822;[email protected]
Action: failed
Status: 5.7.26
Remote-MTA: dns; gmail-smtp-in.l.google.com
Diagnostic-Code: smtp; 550-5.7.26 This mail has been blocked because the sender
is unauthenticated. 550-5.7.26 Gmail requires all senders to authenticate
with either SPF or DKIM. 550-5.7.26 550-5.7.26 Authentication results:
550-5.7.26 DKIM = did not pass 550-5.7.26 SPF [sgc.edu.ph] with ip:
[23.83.209.80] = did not pass 550-5.7.26 550-5.7.26 For instructions on
setting up authentication, go to 550 5.7.26
https://support.google.com/mail/answer/81126#authentication
b13-20020a170902650d00b001e435d95c63si2633606plk.315 - gsmtp

 

[ericosman]

said: 550-5.7.26 This mail has been blocked because the sender is
unauthenticated. 550-5.7.26 Gmail requires all senders to authenticate with
either SPF or DKIM

Like it states here, you have to setup either SPF or DKIM.
Are you an admin or a user?

This SPF record works for me, you will have to add it to all of your domains.

"v=spf1 a mx ip4:[hereipv4] ip6:[hereipv6] ~all"

DKIM you can enable under E-mail Manager --> Enable DKIM

 

[Aliza]

Like it states here, you have to setup either SPF or DKIM.
Are you an admin or a user?

This SPF record works for me, you will have to add it to all of your domains.

DKIM you can enable under E-mail Manager --> Enable DKIM

I'll just copy and paste this in "v=spf1 a mx ip4:[hereipv4] ip6:[hereipv6] ~all" in DNS Management?

 

[ericosman]

you will have to crate a record indeed, and put your ipv6 and ipv4 in the correct place

 

[Stije]

You are using mailchannels.
You should use the mailchannels SPF entry inlcuded in your domain.

stije@mantra ~ % host 23.83.209.80
80.209.83.23.in-addr.arpa domain name pointer hamster.birch.relay.mailchannels.net.

So you will need to add to your existing SPF if you have one:

include:relay.mailchannels.net

If you do not have one you should add:

v=spf1 include:relay.mailchannels.net ~all

And create a subdomain with a txt record with your mailchannels account id:

_mailchannels        TXT      v=mc1 auth=$ACCOUNT-ID

$ACCOUNT-ID is your own account id off course.