Newest 'spam+dkim' Questions

0 votes

0 answers

70 views

What are these DMARC failures about?

I've been toying with dmarc off and on for the last couple of months. Currently I have no policy set. I am using URIReports for report collection and analysis. Most of the results are good. We use ...

Rob Brandt

103

asked Apr 17 at 18:38

2 votes

1 answer

4k views

DMARC record is valid, but your domain's None/Quarantine policy does not yet protect it against email spoofing and phishing

People, Using the website: https://easydmarc.com/tools/dmarc-lookup?domain=name.com I got this error: DMARC record is valid, but your domain's None/Quarantine policy does not yet protect it against ...

Senior Systems Engineer

1,305

asked Jul 27, 2022 at 0:52

0 votes

0 answers

636 views

DKIM: validation error: error:RSA_padding_check_PKCS1_type_1:invalid padding

We receive a lot of spam on our servers from 3rd party servers and often this spam includes the email header such as: DKIM: validation error: error:0407008A:rsa routines:...

Martin

217

asked May 23, 2022 at 13:33

0 votes

2 answers

6k views

Why did this incoming email get through Office 365 spam filters with a DKIM fail? What policy do I need to "tune"?

We use Office 365 mail, I got this spam email this morning so I checked the header to see if there was anything I could do. Here is the header with our receipt domain removed Received: from ...

AngryCarrotTop

298

asked May 10, 2022 at 9:39

0 votes

0 answers

1k views

DMARC, DKIM, or SPF? Emails going into quarantine

I have never had to deal with DKIM, DMARC, or SPF records before; however, our SPF record is full (10, Cloudflare) and I have a vendor whose emails aren’t making it to our mailboxes. I made ...

Cody

1

asked Jul 2, 2021 at 14:25

0 votes

0 answers

380 views

DKIM validation fails only on Outlook

I'm configuring OpenDKIM to sign miltiple domains with the same key on Pstfix. I followed this tutorial with s=mail and d=example.com. SigningTable: * mail._domainkey.example.com KeyTable: ...

Demba

11

asked Apr 2, 2021 at 7:49

25 votes

5 answers

8k views

Does DKIM alone not solve the spam issue? Why do I need SPF?

FINAL EDIT : I was completely wrong about DKIM it seems, the signing domain does not have to be the same as the sender domain, thus the whole premise for my question is flawed. A lot of thanks to Paul ...

cornergraf

521

asked Feb 28, 2021 at 14:10

2 votes

1 answer

957 views

DKIM Key Rotation Best Practices

Do you find it necessary to regenerate your DKIM keys every 1-6 months to avoid your mail going into the receiving servers' junk mail folder? Some guides recommend this, some even say it's "Best ...

Jeff

1,436

asked Oct 9, 2020 at 14:21

1 vote

1 answer

3k views

emails to Yahoo are ending up in SPAM folder despite spf=pass, dkim=pass and dmarc=pass

Are we possibility having a reputation problems with Yahoo emails? Yahoo raw mail header finds my policy I published: dmarc=success(p=REJECT,sp=REJECT) Emails to clients at Google and Outlook are not ...

MeSo2

274

asked Aug 8, 2020 at 21:59

1 vote

1 answer

929 views

Setting up SPF record for A2Hosting shared hosting

I'm trying to setup A2Hosting SPF correctly since the proposed SPF is landing the emails in the SPAM folder in Gmail. This is the default SPF: v=spf1 +mx +a +ip4:210.125.99.77 ~all But when ...

Vlax

121

asked May 2, 2020 at 16:37

13 votes

2 answers

16k views

How does DKIM work when sending emails from multiple sources/servers?

So if I'm understanding DKIM correctly, it basically is a public/private key type of service. However, how does this work if you send emails from multiple servers/sources? For instance, I have a ...

Marc NJ

141

asked May 1, 2020 at 22:02

3 votes

2 answers

2k views

SPAM Domain Spoofing through SES

A spammer seems to be running spam through SES and spoofing our domain. We are using SPF and DKIM so I’m not sure what is going on. This is our SPF record: v=spf1 a mx include:amazonses.com include:...

Collin Krawll

131

asked Jan 7, 2020 at 0:01

0 votes

2 answers

276 views

Emails from my domain (hmailserver) are always in YahooSpam

Hi during sending out my mails from my domain luxpost.com they are placed directly into spam folder in yahoo. I tried to analyse the raw header and got only DKIM warnings. So I placed a DKIM entry in ...

Robert

1

asked Nov 22, 2019 at 7:58

0 votes

0 answers

36 views

DKIM and SPF for Different Server [duplicate]

My situation like the following: Web server hosted in Google Cloud with domain name lets say: example.com Mail server hosted in Linode (lets say in server name: server.myserver.com) using cPanel with ...

Luxor

1

asked Sep 15, 2019 at 3:28

0 votes

0 answers

325 views

Mail issues only with Google App domains

I have a local mail server set up. It is connected via a dedicated IP (with an appropriate PTR record). I have DKIM, DMARC, and SPF set up. My domain has been added to Google's Postmaster Tools and ...

Joseph

153

asked Jun 4, 2019 at 6:54

1 vote

0 answers

264 views

Outbound Emails flagged as Spam from Wordpress but not Gmail(DKIM SPF issues)

I recently setup wordpress and pointed my domain to it. With that, we setup gsuite to handle email. We have the domain at godaddy and the server space on a VPS instance. I have added the MX records ...

ninjasense

141

asked Aug 5, 2018 at 3:27

0 votes

1 answer

61 views

Is it as dangerous to modify DKIM domain's public key, as to get a domains' sending private keys?

I've been reading about DKIM and one of the reasons it cannot be "hacked" is because an attacker doesn't have access to a server's DKIM private key. But what if the attacker has access to the domain'...

daremkd

159

asked Nov 12, 2017 at 19:58

0 votes

1 answer

356 views

Outgoing email marked as spam. Can you tell what is wrong from email header?

I have a send-only server using postfix. The outgoing email goes to Yahoo's spam folder. It is a test email, the content is very short. I attach the header below. The SPF, DKIM all looks good. Can you ...

Wayne

1

asked Mar 20, 2017 at 22:59

4 votes

1 answer

517 views

Two servers, same email sent from both, Gmail sees only one as spam

I've been working on this problem for years with no success (I gave up a while back and just hoped Gmail would eventually "learn" that messages from one of my servers wasn't spam, but that apparently ...

Jason Rohrer

183

asked Feb 15, 2017 at 7:11

5 votes

1 answer

14k views

Improve Spam Confidence Level (SCL) for outgoing emails

I have a postfix SMTP server on Ubuntu. I have valid SPF and DKIM records, as verified by the email header my customer received. Authentication-Results: spf=pass (sender IP is XXX.XXX.XXX.XXX) ...

Raptor

1,041

asked Jan 13, 2017 at 7:28

0 votes

1 answer

251 views

dkim for email marketing service but none for email host

hopefully this is a simple question to answer... For the last few years I've had only SPF setup with our O365 Exchange Online domain's DNS records. I haven't yet setup a DKIM because we've never ...

Reece

783

asked Nov 30, 2016 at 10:01

5 votes

3 answers

7k views

Google Apps email DKIM won't authenticate

We're trying to set up DKIM authentication on our Google Apps/G Suite for Business domain to reduce the number of our emails which are ending up in people's spam folders. We have generated the DKIM ...

Bdoserror

184

asked Oct 21, 2016 at 3:01

0 votes

0 answers

5k views

Multiple DKIM records [duplicate]

I have google (Google Apps for Business) as my primary email provider. But I use another company to do the marketing email campaigns. And since Google doesn't allow to export DKIM key, I would like to ...

Roman_T

341

asked Sep 22, 2016 at 14:27

1 vote

1 answer

546 views

SPF, DomainKeys and DKIM for alternate domain authenticaton

Lets say my domain is example.com and we have SPF records for the SMTP servers on example.com. Now lets say I have decided I want to allow example.org to send mail as example.com.I know how to add ...

user53029

649

asked Aug 29, 2016 at 0:27

4 votes

3 answers

5k views

mails fom my mailserver go to spam folder of hotmail.com [duplicate]

I set up a mail server with dovecot/postfix on a debian server. I don't send commercial mail or newsletters. We are only 4 users and nobody send SPAM. We only send classical mails (no large pictures ...

Kettbi

41

asked Jun 28, 2016 at 14:34

8 votes

2 answers

16k views

DKIM with same key but different domains

We are planning to sign with DKIM emails for multiple domains. Each domain will have a CNAME to a DNS entry in a common domain where the keys are stored. If every domain sign with the same key, but ...

Ricardo Polo Jaramillo

2,039

asked Jun 20, 2016 at 22:46

-2 votes

1 answer

134 views

My Email Strightly goes to gmail spam/just folder ( DKIM,SPF,DMARC is okay ) [duplicate]

( it's not duplicate , its related to rDNS , please don't flag it as duplicate or give me the link of related one ) i have a problem, my emails from my mydomain.com straightly goes to spam folder in ...

Hamed Kazemi

1

asked May 10, 2016 at 11:33

44 votes

7 answers

3k views

Is it becoming impossible to be a small mail provider?

I operate a small mail server for my private emails, some friends who have websites and two NGOs. In total my server sends between 60 and 400 messages a day. Now a lot of these emails are personal ...

Stefan Seidel

742

asked Apr 21, 2016 at 18:15

-1 votes

1 answer

72 views

Why does Google junk mails from my server? [duplicate]

I have a send-only mail server setup on an Ubuntu VPS. The mail server is only used to send out registration e-mails from a web application. I have the following configured: DomainKeys Identified ...

Ralph

902

asked Mar 13, 2016 at 15:02

0 votes

1 answer

124 views

Email in SPAM with Debian 8.2 [duplicate]

I have a problem (BIG PROBLEM) with SPAM. All the emails my mail server (Debian 8.2 and ispconfig latest stable) send, end up in spam. I'm using Google Apps. I did a test on spamscorechecker.com ...

Luca Vasini

11

asked Dec 19, 2015 at 20:56

-2 votes

1 answer

71 views

Spam from my email address on my domain with DKIM

Someone is sending spam emails from my email address. And it looks like these emails have DKIM. How is this can be possible if they doesn't have access to that email? (my emails handles by something ...

Eugene

119

asked Dec 17, 2015 at 22:00

0 votes

1 answer

2k views

DKIM, SPF, DMARC, SPF OK mails are flagged as SPAM

I have a dedicated server running CentOS7 with Postfix, the problem is that all the sent mails are flagged as SPAM by hotmail and gmail despite DKIM, SPF, DomainKeys, DMARC records and keys wich are ...

pixel draw solutions

1

asked Dec 9, 2015 at 19:11

2 votes

1 answer

134 views

Setting DKIM and SPF records for client domains

I have created an email server that is capable of handling mail for multiple websites. e.g. [email protected], [email protected] etc. The emails are sending and receiving fine, but the spam score is ...

Dan Hastings

706

asked Nov 24, 2015 at 14:12

1 vote

2 answers

302 views

Is DMARC helpful to me if I don't need reporting?

I have SPF and DKIM setup and working for the email domain I administer. The next recommended step is to setup DMARC since SPF and DKIM are both in place. What are the benefits of using DMARC if both ...

poke

1,079

asked Jul 23, 2015 at 14:08

1 vote

2 answers

2k views

Spam delivered by mx.google.com despite SPF fail

Some spammer use our e-mail address as sender in forged e-mails. Now we got thousands of bounced messages from no longes existing e-mails. We set up SPF and DKIM records but it does not stop. ...

Martin Mystik Jonáš

355

asked May 2, 2015 at 14:24

0 votes

1 answer

225 views

Prevent Email Going to Spam [duplicate]

I've set up my own server and I'm really struggling to stop any outgoing email go to spam. I've used allaboutspam and mail-tester.com to test it and they both come back with perfect results. No ...

Pixedo

1

asked Dec 1, 2014 at 17:20

1 vote

1 answer

6k views

How to configure SPF and DKIM to prevent mail going to spam folder

When creating a mail with PHPMailer my emails are getting sent to the spam folder of my recipients mailbox I have been told I need to configure my SPF and DKIM correctly, I think I have done this ...

neeko

123

asked Nov 27, 2014 at 18:44

-1 votes

2 answers

1k views

GMail detecting mail as spam [duplicate]

I've been trying for a long time to get our company's mail server send mail that will get accepted by the GMail spam filter. I have managed making it work for Yahoo Mail and Hotmail, sadly GMail is ...

Petru Toader

9

asked Aug 20, 2014 at 14:48

0 votes

3 answers

414 views

Error sending emails from a mail server relay type falling into the spam folder (using postfix)

Here I show one of the emails that come to Yahoo, which are falling directly into SPAM folder. The SPF goes smoothly, the DKIM passes without problem, even DMARK passes without problem, but just keep ...

Roger Zavala

1

asked Jul 10, 2014 at 16:47

3 votes

2 answers

3k views

Postfix sends email to spam (gmail, hotmail)

I recently installed a postfix + dovecot + dkim multi domain, multi user, multi alias mail server on my debian squeeze system. Everything works except for one big issue that basically makes the whole ...

razorxan

131

asked Jun 8, 2014 at 13:17

-2 votes

1 answer

3k views

Using DKIM in my server for multiple domains (websites)

As I couldn't find this exact tutorial in Stack, I share my findings with al of you. I always get things solved thanks to this comunity. Thanks! Original question: I've read the tutorial posted by ...

Diego

145

asked Apr 9, 2014 at 15:14

0 votes

2 answers

56 views

Marking emails with DKIM - safe?

Im running an email server as part of a research study. We have subjects connecting and sending email from a variety of clients. One function of this server is to communicate with said subjects - ...

ethrbunny

2,379

asked Feb 19, 2014 at 19:04

1 vote

1 answer

531 views

Whose DKIM signature to use, my own or Amazon SES'?

I have OpenDKIM properly set up to sign emails from my domain such that when sent through Amazon SES, Yahoo Mail shows dkim=pass. Given I got the infrastructure working, is there any benefit to ...

Blair Zajac

549

asked Nov 26, 2013 at 8:26

7 votes

4 answers

4k views

Why does my mail get marked as spam?

I Have the server "afspraakmanager.be". It matches everything not to be a spam server.(it isn't by the way): it has reverse dns, spf,dkim,... . But hotmail marks it as spam. I think the problem is ...

Nick

195

asked Oct 21, 2013 at 13:31

1 vote

1 answer

338 views

Mails marked as spam in gmail for some accounts

I have a couple of domains running on my VPS with VirtualMin. I have DKIM enabled, reverse DNS is setup and SPF records are added by Virtualmin. Now I have a main account (admin) which I can easily ...

Roger Far

340

asked Sep 16, 2013 at 21:14

1 vote

1 answer

2k views

dkim-milter appears not to be signing my emails correctly

I have a VPS that I had a fresh install of CentOS 6 on it and then I installed virtualmin on it and we've been great for a few months. I've been hosting a handful of domains from there and on one of ...

n0nag0n

163

asked Jun 7, 2013 at 20:59

2 votes

1 answer

1k views

Mail is marked as spam although SPF and DKIM pass

I have configured Postfix to send mail from a dedicated server hosted let's on IP X.X.X.X and domain name example.com. DKIM, SPF always pass when I send mail locally from that host but still ends up ...

romseguy

121

asked Mar 16, 2013 at 16:52

1 vote

1 answer

185 views

Set up spf and dkim, where email domain and sending domain differ

I have two domains: foo.com and bar.com Only foo.com is using Google Apps and thus can send emails. I now have a service running on bar.com\application that uses the email [email protected] to ...

cherrun

759

asked Mar 10, 2013 at 10:38

1 vote

3 answers

14k views

cPanel Server Email to Gmail marked as Spam, SPF, DKIM, and rDNS pass

Having this issue on a cPanel server 11.34.1 that hosts multiple domains. Email originating from this box on the sendingdomain.com address is flagged as Spam by Gmail. I've implemented SPF and DKIM, ...

bmurtagh

773

asked Feb 20, 2013 at 13:32

2 votes

2 answers

257 views

What is the Value of using DKIM to sign mail when the from header doesn't match?

My domain is domain.tld, where I have DKIM functioning just fine. All of my domain emails are signed, and pass. I have a need now to send mail on behalf of my customers occasionally - ie: send email ...

Danny F

498

asked Dec 12, 2012 at 21:08

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