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SPF configuration

Sender Policy Framework (SPF) technology allows to verify that sender domain has not been faked. To make it work you need to add a special TXT record to your sending domain. It will allow only specified hosts to send messages using your domain.  

We recommend to add records for different SPF versions:

Domain

Record typeRecord content

Contents

example.com.TXTv=spf1 include:spf.aksend.net -all
example.com.TXTspf2.0/pra include:spf.aksend.net -all

...

Note
Note that we recommend to use restricting rules where only the enlisted resources are allowed!


DKIM configuration

DomainKeys Identified Mail (DKIM) technology adds to your message a digital signature of your from-domain. The signature is automatically verified on the recipient side and hen it is used to manage sender reputation. The signature is technically an RSA key pair: the private part is built in sender infrastructure and the public part should be added to your domain as a special subdomain TXT record:


Domain

Record typeRecord contents

Contents

ak._domainkey.example.com.TXTv=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCldFYh3Rfrmeov+WqYYpwfW2bVUzxXPy9dSVoUCGLKCn+vgY/pdKIIBFitkvZJXGLnHqreqwGzoriEWf9ZRd+cL2LdA4UrDKheMeorBd2NSIqihkTaKz8PA+SIBFxFGm2Z0Krh5ZDF2NtFVhtD4YvqmrFqk2muzZ0tFEko8zP30wIDAQAB
_domainkey.example.com.TXTo=-;

...

Tip

To get a personal DKIM for Altkraft Marketing contact team@altkraft.com and provide us with your domain name.


DMARC settings

DMARC technology allows mailing servers to decide what to do if SPF or DKIM verification fails. 

Here we recommend to restrict messages sent from unknown IP addresses or signed incorrectly.

Domain

Record typeRecord contents

Contents

_dmarc.example.com.TXTv=DMARC1; p=reject; sp=reject; mailto:report@example.com

BIMI settings

BIMI technology (Brand Indicators for Message Identification) is used along with SPF, DKIM and DMARC or identifying email sender by company brand logo, placed near the message subject in recipient's inbox. Email providers thus can additionally verify the sender. 

To start using BIMI you will need an svg image, that is rectangular and has no extra layers.

Add the following record to your domain settings, specifying the svg file path:

Domain

Record type

Contents

default._bimi.example.comTXTv=BIMI1; l=https://example.com/bimi/bimi.svg

You can also use BIMI record generator at https://bimigroup.org/bimi-generator/

Tracking domain settings

Tracking domains are used to collect your customers' behavior information. For any subdomain you use add this record:

DomainRecord typeRecord contentsContents
trk.example.com.CNAMEtrk.aksend.net

...