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Why must I use an external SMTP Server for bulk emails?

Discussion in 'BlackHat Lounge' started by michaeladewale2010, Aug 11, 2015.

  1. michaeladewale2010

    michaeladewale2010 Junior Member

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    ok first i'm a newbie but i'm not a fool...i have been studying on email marketing because i believe it to be the single most powerful form of digital marketing....but i just cant seem to understand the need for getting an external smtp server and using it to send bulk emails...and here are my reasons why:

    1) if the receiver's mail transfer agent checks to ensure that the email has the signature of the ip it is registered to send emails from, wouldnt this confirmation come from my initial server where i am sending the mail from and not the external smtp? if its the external smtp that is checked for a signature then i believe every email would bounce since the external smtps havent been authorized by a signature to send emails for my particular domain?

    2) SPF records that are supposed to be checked on the senders email records...its similar to the same reason above...if my domain is registered to my original ip address, shouldnt the recipient email's MTA reject emails from smtps sinc ethey are not authorized with my domain name?

    3) interspire can on its own fire out thousands of emails through whichever server i have configured it on, why do i need to still use an external smtp for this?

    pls can an expert explain this to me in simple terms? like i said im a newbie so some of these things might be stupid questons but i want to know nonetheless as there are conflicting ideas ive been coming across.

    pls i said experts should reply also...not those who think they know everything but would come here with some dumb comments like "newbie this newbie that" . i am here to learn and so far this forum has been extremely helpful to me and i'll like to continue my communication with sensible ppl who know their stuff. thank you very much
     
  2. black101

    black101 Supreme Member

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    how do you get your emails? i guess what you want to do is scrape the internet for emails then email to them?

    if yes, most hosting wont allow bulk sending, specially if you want to send 1000 per hour, most hosting will be 100 per hour max. so using an smtp will allow you to send more.

    interspire can send through its build in smtp, but, it is blacklisted so all your emails will go to spam, and if it goes to spam no one will read.

    concerning ip trust, you will get flagged very quickly, a lot of ppl will report your email as spam, so ip will get blacklisted.

    also, you going to need to clean the emails, a lot of email are honey traps, if you send an email to those you will be blacklisted.

    and scraping and sending emails is illegal, so you better not use your real ip.
     
  3. michaeladewale2010

    michaeladewale2010 Junior Member

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    but where does the receiving mail transfer agent do its DKIM and SPF verifications from? is it from the smtp servers? if so how does an smtp server pass these tests? do they automatically become authorized when u begin using them?
     
  4. ChrisX

    ChrisX Jr. VIP Jr. VIP

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    Because most of your emails will be (correctly) marked as spam and never reach the inbox. Doesn't matter if you have DKIM or SPF set up.

    Reputable SMTP services fight hard for their inboxing rate so they have to be extra careful to prevent spammers from using their servers.
     
  5. linuxsmtp

    linuxsmtp Regular Member

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    emailing is about sending mails back and forth , in this way your server will be whitelist on 4 major email providers.
    - Gmail
    - Yahoo
    - Aol
    - Hotmail
     
  6. michaeladewale2010

    michaeladewale2010 Junior Member

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    i see...so this generally means that if i send thru an smtp server, the ip address registered to that email will be the ip of that smtp server and if they are a reputable smtp, then DKIM and SPF shouldnt matter to the receiver.

    is this correct?
     
  7. proxygo

    proxygo Jr. VIP Jr. VIP Premium Member

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    so you bumped a 5 month old thread as new member thinking people will
    pm u for more info ....really