Someone is sending spam using my domain name

msatt

@somik said: Also, I am surprised no one asked you to setup DKIM certificate... That way all your mail are signed and the receiving party can validate that the email was sent from the correct mail server.

So another TXT record like v=DKIM1; k=rsa; t=s; p=LONG_STRING_CONTAINING_PUBLIC_KEY_GOES_HERE

Interesting - How would this work if I used both namecrane AND mxroute for outgoing emails for my domain (I don't.... yet) ?

ahnlak

@msatt said:

@somik said: Also, I am surprised no one asked you to setup DKIM certificate... That way all your mail are signed and the receiving party can validate that the email was sent from the correct mail server.

So another TXT record like v=DKIM1; k=rsa; t=s; p=LONG_STRING_CONTAINING_PUBLIC_KEY_GOES_HERE

Interesting - How would this work if I used both namecrane AND mxroute for outgoing emails for my domain (I don't.... yet) ?

You have DKIM entries for each, using a different selector (from memory, mxroute always uses 'x', namecrane uses a random one so there's no overlap)

somik

@ahnlak said:

@msatt said:

@somik said: Also, I am surprised no one asked you to setup DKIM certificate... That way all your mail are signed and the receiving party can validate that the email was sent from the correct mail server.

So another TXT record like v=DKIM1; k=rsa; t=s; p=LONG_STRING_CONTAINING_PUBLIC_KEY_GOES_HERE

Interesting - How would this work if I used both namecrane AND mxroute for outgoing emails for my domain (I don't.... yet) ?

You have DKIM entries for each, using a different selector (from memory, mxroute always uses 'x', namecrane uses a random one so there's no overlap)

Or see if it's possible to use the same certificate on both (not recommended). On Virtualmin, i have a option to specify the certificate being used to sign the outgoing mail if I dont want to use their auto-generated one.