Sender Policy Framework (SPF) is a system designed to prevent email spoofing/forgery
Sender Policy Framework (SPF) is a system designed to prevent email spoofing/forgery
Questions tagged [spf]
529 questions
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votes
2 answers
Which SPF record takes precedence?
A legacy domain has two SPF records that are identical except for ~all vs -all.
A domain should have a single SPF record, correct?
Which record takes precedence?
Which one should I delete?
Bevan
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1 answer
How to configure custom nameservers with dedicated server and different domain Provider
I would like to know how to point mydomain.it to my dedicated server.
I explain my situation:
I have a Dedicated server on SingleHop.
I have the domain "mydomain.it" on Siteground.
I created on my Dedicated server the nameserver:…
michele.falconi
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1 answer
SPF Record for Amazon EC2 and preventing emails being marked as spam
I'm trying to sort out my Amazon EC2 to allow emails to be sent via my main server.
Currently the SPF record for the main website/server is as follows::
website.com. 300 IN TXT "v=spf1 +a +mx +ip4:1.1.1.1 ~all"
We have an Elastic IP setup on…
Ryflex
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1 answer
What is the correct way to combine these SPF records?
Having done a recent MX check I have noticed that our domain has multiple SPF records. I was just wondering if anyone knew the correct way to combine the follow?
v=spf1 +a +mx ~all
v=spf1 include:_spf.google.com ~all
I would assume it is just
v=spf1…
S.Beeley
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1 answer
SPF record seems to not register at gmail (at least)
So I have the following SPF record for the domain hojio.com:
The TXT records found for your domain are:
v=spf1 ip4:194.150.114.22 ip4:194.150.114.0/24
include:support.zendesk.com include:smtp.zendesk.com ~all
The domain is on the ip…
Gleiemeister 2000
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votes
2 answers
Mail rejected with "Client host rejected: MX-CIDR"
I am trying to send mails with mailgun. My DNS config (SPF,DKIM) seems to be ok and are being validated in mailgun service. I can send mail to several users with gmail, live and most others mail providers. However, I have a problem when I sent an…
fhenrique
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votes
3 answers
Change sender email on VPS with Debian
I am sending a contact form response through PHP, respectively PHPmailer. It is sent from VPS with Debian & ISPConfig & Apache installed. The email is sent fine, Gmail recives it with no problem. However when I open the "original mail code" there…
jave.web
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votes
1 answer
What is minus a in a spf record
I have a client that have a spf record i don't understand.
The record is like this:
"v=spf1 a:domain.tld -a:gmail.com -a:googlemail.com -ip4:xx1.yy1.zz1.xx -ip4:xx2.yy2.zz2.xx include:spf.mandrillapp.com include:servers.mcsv.net ?all"
I have…
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votes
1 answer
Disable DMARC for inbound mail
I have in-house SMTP server with SPF, DMARC and DKIM configured for my domain. For inbound mail I use 3d party service.
MX is included into SPF record
v=spf1 a mx include: _spf.mailprovider.com include:spf.mail.example.com ~all
DMARC is configured…
Ilya Cherevkov
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votes
1 answer
How can I merge these two SPF records?
I'd been trying to merge these two into one on the TXT records tab but I get all kinds of errors:
v=spf1 include:zoho.com ~all
v=spf1 include:servers.mcsv.net ?all
I'd really appreciate any help.
tadm123
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votes
1 answer
Order of security checks for incoming email
Team,
I would like to know the order in which checks like ( spf check, reverse DNS check, DKIM check) are performed for incoming email. Is this vendor product specific??
If particular order is followed, the reason for it.
Thanks in…
Karthik reddy
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votes
1 answer
Building SPF record with existing SenderID in place
I'm evaluating setting up SPF for a domain that already has SenderID. We're considering removing the SenderID record entirely and replacing it with just an SPF record, instead of trying to write a SenderID record that tries to encompass SPF and…
Alex Regan
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votes
2 answers
email sender authentication with Postfix
I have setup PostFix for receiving emails only.
I want to authenticate the received emails against their sender email addresses by using SPF or DKIM.
Is there a good java plugin available for this? or do i need to write my own in java (other…
Ashish Sharma
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votes
1 answer
Issue with Gsuite
Can anyone help what causes Gsuite to do this?
It says: GSuite error 550 5.7.26 mail is unauthenticated. The sender must authenticate with at least one of SPF or DKIM.
Tried to click the google support link but nothing helped at all. Can someone…
Darym B.
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votes
1 answer
how to create spf record as spf.example.com
usually, we get an SPF record in the form of spf.thirdpartyexample.com now if we install any email server we create an SPF record with ip:xx.xx.xxx.x reference link from validity
v=spf1 -mx -ptr include:_spf.mx.cloudflare.net -all
so my question is…
