Re: How to ensure genuine emails despite valid email format?

[Integr@te System]

Hi Roshan,

Follow to previous mails above, check further mail according to:
# Comply to mail's policies (entire system).

# Alongside network (ISP, provider, local(NPS, ad, ldap, mail app,
computer)...end to end.

# Or you can imagine your gmail, check google policies for spam/not
spam(this is provider).

# Don't forget setting you or coworker config before, relative marketing.

So all your question check config at each layer.

On Tue, Dec 31, 2019, 03:07 David Mayne  wrote:

> a) - you can use a service like http://www.bulkemailchecker.com/ - there
> are a number of them that have an api you can verify the email address on
> form input.
> b - d) you can use https://mxtoolbox.com/ api to find blacklisted IP's
> and domains.
>
> Another option is to add a verification step - send the user a
> verification email for them to reply to.
>
> David
>
> On Sun, Dec 29, 2019 at 9:16 AM Roshan Shah 
> wrote:
>
>> There is a problem when a person enters valid email format but it is
>> either
>>
>> a) An invalid email which bounces
>> b) A valid email but using one of disposable email which means it is a
>> fake profile
>> c) Emails from domains that are marked as spam
>> d) Emails from IP addresses that are marked as spam
>> How do we ensure that before we accept emails, both the above cases are
>> put in pending status with appropriate message and reason code to put them
>> in pending?
>>
>> --
>> --
>>
>> Roshan Shah / Sr. IT Consultant
>> techieros...@gmail.com / (519) 496-8860
>>
>> This e-mail message may contain confidential or legally privileged
>> information and is intended only for the use of the intended recipient(s).
>> Any unauthorized disclosure, dissemination, distribution, copying or the
>> taking of any action in reliance on the information herein is prohibited.
>> E-mails are not secure and cannot be guaranteed to be error free as they
>> can be intercepted, amended, or contain viruses. Anyone who communicates
>> with me by e-mail is deemed to have accepted these risks.
>>
>> --
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>> 
>> .
>>
>
>
> --
> David
>
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> 
> .
>

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Re: How to ensure genuine emails despite valid email format?

[David Mayne]

a) - you can use a service like http://www.bulkemailchecker.com/ - there
are a number of them that have an api you can verify the email address on
form input.
b - d) you can use https://mxtoolbox.com/ api to find blacklisted IP's and
domains.

Another option is to add a verification step - send the user a verification
email for them to reply to.

David

On Sun, Dec 29, 2019 at 9:16 AM Roshan Shah  wrote:

> There is a problem when a person enters valid email format but it is
> either
>
> a) An invalid email which bounces
> b) A valid email but using one of disposable email which means it is a
> fake profile
> c) Emails from domains that are marked as spam
> d) Emails from IP addresses that are marked as spam
> How do we ensure that before we accept emails, both the above cases are
> put in pending status with appropriate message and reason code to put them
> in pending?
>
> --
> --
>
> Roshan Shah / Sr. IT Consultant
> techieros...@gmail.com / (519) 496-8860
>
> This e-mail message may contain confidential or legally privileged
> information and is intended only for the use of the intended recipient(s).
> Any unauthorized disclosure, dissemination, distribution, copying or the
> taking of any action in reliance on the information herein is prohibited.
> E-mails are not secure and cannot be guaranteed to be error free as they
> can be intercepted, amended, or contain viruses. Anyone who communicates
> with me by e-mail is deemed to have accepted these risks.
>
> --
> You received this message because you are subscribed to the Google Groups
> "Django users" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to django-users+unsubscr...@googlegroups.com.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/django-users/CALX19NipTrrd8sgXcrDO07nHBj-A9FtobGgdmfy4r%3Duhbp7g1A%40mail.gmail.com
> 
> .
>


-- 
David

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Re: How to ensure genuine emails despite valid email format?

[Jason]

I have no idea if this is a thing in Mailgun, sorry.  You'll have to check 
their documentation.

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Re: How to ensure genuine emails despite valid email format?

[Roshan Shah]

Great.

Anyway you can get mailgun email bounces data and automatically update your
local database and flag those profiles with bounced emails in your
application?

Roshan

On Mon, Dec 30, 2019 at 8:54 AM Jason  wrote:

> Part of your problem is that email is a fire-and-forget application.  Once
> it's sent out, its in the control of the email server for routing.
>
>1. I don't know of a way to handle this without having any access to
>the account the user uses to send the email
>2. Use a whitelist of valid email senders, but this is a neverending
>task with high probability of false positives.  And disposable email
>addresses have their valid uses, and I use them frequently to help control
>spam. So if you block those, you might be angering alot of your valid users
>3. Same with 2, whitelist
>4. Same with 2, whitelist
>
> --
> You received this message because you are subscribed to the Google Groups
> "Django users" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to django-users+unsubscr...@googlegroups.com.
> To view this discussion on the web visit
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> 
> .
>


-- 
-- 

Roshan Shah / Sr. IT Consultant
techieros...@gmail.com / (519) 496-8860

This e-mail message may contain confidential or legally privileged
information and is intended only for the use of the intended recipient(s).
Any unauthorized disclosure, dissemination, distribution, copying or the
taking of any action in reliance on the information herein is prohibited.
E-mails are not secure and cannot be guaranteed to be error free as they
can be intercepted, amended, or contain viruses. Anyone who communicates
with me by e-mail is deemed to have accepted these risks.

-- 
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Re: How to ensure genuine emails despite valid email format?

[Jason]

Part of your problem is that email is a fire-and-forget application.  Once 
it's sent out, its in the control of the email server for routing.

   1. I don't know of a way to handle this without having any access to the 
   account the user uses to send the email
   2. Use a whitelist of valid email senders, but this is a neverending 
   task with high probability of false positives.  And disposable email 
   addresses have their valid uses, and I use them frequently to help control 
   spam. So if you block those, you might be angering alot of your valid users
   3. Same with 2, whitelist
   4. Same with 2, whitelist

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How to ensure genuine emails despite valid email format?

[Roshan Shah]

There is a problem when a person enters valid email format but it is either

a) An invalid email which bounces
b) A valid email but using one of disposable email which means it is a fake
profile
c) Emails from domains that are marked as spam
d) Emails from IP addresses that are marked as spam
How do we ensure that before we accept emails, both the above cases are put
in pending status with appropriate message and reason code to put them in
pending?

-- 
-- 

Roshan Shah / Sr. IT Consultant
techieros...@gmail.com / (519) 496-8860

This e-mail message may contain confidential or legally privileged
information and is intended only for the use of the intended recipient(s).
Any unauthorized disclosure, dissemination, distribution, copying or the
taking of any action in reliance on the information herein is prohibited.
E-mails are not secure and cannot be guaranteed to be error free as they
can be intercepted, amended, or contain viruses. Anyone who communicates
with me by e-mail is deemed to have accepted these risks.

-- 
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