Blacklisted on SPFBL.net RBL

[Siggi100]

Hello i try to fix this.
Your IP or domain 5.185.24.46 is blacklisted on SPFBL.net RBL IgnorierenDetails

• The blacklist reason is: “https://matrix.spfbl.net/5.185.24.46”
• After identifying why you are listed and fixed it, feel free to ask for your IP or domaine to be removed on https://spfbl.net/en/dnsbl/

I ask spfbl to help me, the first question was:
Hi. Is that host, at listed IP, a regular outgoing mail server with RFC 5321 compliance? If yes, could you give me its FQDN?
But i dont now if the mail server is RFC 5321 an what is his FQDN.
Maybe someone can help me to answer that.

[Aleks]

I guess yes it is RFC 5321 compliant … (apparently that RFC is just the one defining the SMTP protocol). The FQDN should be your main domain name (FQDN stands for fully qualified domain name, which is a fancy technical way for “full” domain name basically…)

[Siggi100]

I gave him the Main Domain Name. An his answere was:
You’re confusing root domain with email server FQDN.

[Aleks]

Well if he’s so smart then what is it …

In yunohost, the root domain is also the email server domain …

[Siggi100]

@Aleks

In yunohost, the root domain is also the email server domain

I will write him this…

[Siggi100]

No. I’m refering the FQDN used at SMTP transaction. Your root domain only points to this mail server, but not name it.

[ljf]

Maybe if you send the result of :

telnet YOURDOMAIN 25 

this person will accept it or explain more the issue.

[Siggi100]

Ok now i know, what to do.
I try to change this…
Thanks. You must change the rDNS of mail server IP 5.185.24.46 from ‘public-gprs700653.centertel.pl’ to ‘s-grabisch.de’ before you be able to delist it for free at this tool:
https://spfbl.net/en/delist/