IP Address

Forum|Forum|4 years ago
September 22, 2021
2 replies
3392 views

When sending an email in Marketo how does it pick your IP address? if we did not whitelist our IP, are we using a shared IP?

Marketo

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Jo_Pitts1

Community Manager

I'm quite interested in WHY it matters to you?

Is it because your emails are getting caught in a spam trap?

M

mhardyAuthor

New Participant

Yes, I believe we may be getting caught in a spam trap. We haven't changed anything nor have added anyone to our database. I am just trying to understand what might have happened.

Jo_Pitts1

Community Manager

So you think you are getting caught in your own spam trap? A client's spam trap? or one of the big email providers (e.g. gmail, yahoo, outlook)

SanfordWhiteman

New Participant

When sending an email in Marketo how does it pick your IP address? if we did not whitelist our IP, are we using a shared IP?

If you have a shared instance (this doesn’t have to do with “whitelisting” or not), then you’re using the shared IP/s of that instance.

If you added a dedicated IP to your subscription, then you’re using that.

M

mhardyAuthor

New Participant

How do you find out which one you do have? If you have a dedicated IP where would you find that out?

SanfordWhiteman

New Participant

How do you find out which one you do have? If you have a dedicated IP where would you find that out?

You can look at the headers of an incoming message. If you have a dedicated IP address you also likely have a custom envelope sender address. That is, not {instance info}.mktomail.com but {custom subdomain}.example.com where example.com is your corporate domain.

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