Host gmail-smtp-in.l.google.com[142.250.27.26] said: 550-5.7.26 Your email has been blocked because the sender is unauthenticated

[Alaaeddine.benabid]

hello friends please I lost a server the provider does not repend I installed another one but I restored the virtual min backup of each domain all the domains to meet there is a problem with google I think

This is the mail system at host amanet.pro.

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kevin.rewachand@gmail.com: host gmail-smtp-in.l.google.com[142.250.27.26]
said: 550-5.7.26 Your email 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 [emultec.ma] with ip:
[84.247.135.199] = did not pass 550-5.7.26 550-5.7.26 For instructions on
setting up authentication, go to 550 5.7.26
Email sender guidelines - Google Workspace Admin Help
4fb4d7f45d1cf-59b24a6c6dbsi3972423a12.76 - gsmtp (in reply to end of DATA
command)

[Joe]

The error seems pretty clear to me. You don’t have SPF configured correctly (SPF is in DNS records), and DKIM failed (either because it’s not present or is misconfigured) for the emultec.ma domain.

[Alaaeddine.benabid]

it’s not just with emultec.ma it’s with all domains

[Joe]

OK, that means you don’t have SPF or DKIM setup properly for all domains.

If your DNS zones are hosted outside of Virtualmin, you need to create the SPF records suggested by Virtualmin.

DKIM is a thing you have to enable and configure. DomainKeys Identified Mail | Virtualmin — Open Source Web Hosting Control Panel

[Joe]

Actually, your emultec.ma domain does have an SPF record:

host -t txt emultec.ma
emultec.ma descriptive text "v=spf1 include:spf.antispamcloud.com -all"

Unless spf.antispamcloud.com is your Virtualmin server, you’re telling the world not to accept mail from it.

[calport]

Alaaeddine my friend, since this is a new install of Virtualmin that you have just launched, why are the settings not default? Default settings work.

[Alaaeddine.benabid]

i dont know