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Re: FORMS, validating mail was sent [message #181934 is a reply to message #181931]

Tue, 25 June 2013 15:32

bill
Messages: 310
Registered: October 2010

Karma:

Senior Member

On 2013-06-25 9:19 AM, Thomas 'PointedEars' Lahn wrote:
> Gordon Burditt wrote:
>
....

>>
>> I certainly hope that a self-described "near newbie" is not going to try
>> to implement something of the scale of Gmail.

At least that's correct; this is a small, semi-social website for the
graduating class of 1964, with 52 graduates and only half of them on
e-mail, so it's small.
Because of that, I'm using this additional form as a learning
experience fIor myself. I have a mostly canned form already there and
appaarently working very well re spam, XSS, etc..
It's interesting how stupid some dummies can assume a newbie might
be based on nothing but attempts for assistance.

>>
>> A self-described "near newbie" is not going to know all the issues
>> in properly validating things that go into mail headers. I won't
>> encourage them to put up email forms (or try do-it-yourself parachute
>> packing and skydiving) until they learn more.

Actually as it turns out, Headers are not required for mail() at my
servers. Some dummie told me they were but that was straightened out
quickly, fortunately. As I've mentioned before I verify things i'm not
familiar with to minimize false starts and other problems.

>
> That the person you are advising is not knowledgable is not an excuse for
> your misinformation.
>
>>> Valid From addresses include all that meet the Address Specification in
>>> RFC 5322, instead. This is a purely *syntactical* determination. It is
>>> the fact that even addresses for which there are no mailboxes at the
>>> sending server can be used in the From header field value, and that
>>> afterwards checking of addresses is unreliable, that allows spammers to
>>> thrive.
>>
>> From the point of view of sendmail, which is used by default setups in PHP
>> (except for Windows), there are other requirements. Sendmail doesn't like
>> local users to forge mail in the name of other users.
>
> Nonsense.
I and my ISP agree with you. Since I have multiple sites there and
have been a customer for over tehn years, I get pretty great technical
support responses, and quickly too. My forms are also filtered so as to
be Plain Text messages only in addition to the other expected safeguards.
I wish I knew more, but that's what learning is all about,
>
....

>
> Utter nonsense. An (standards-compliant) “MX” or “A” DNS record *never*
> points to 127.0.0.1. In particular, an MX record never has an IP address as
> its value, as I have already pointed out.
>
> 127.0.0.1 is specified at most in the local host file, and resolving a
> domain name of a supposed e-mail address will *never* result in 127.0.0.1.

I didn't think so ... thanks.
>
>> However, if the MTA also hosts the sender domain, the
>> check can verify the mailbox exists).
>
> Evidently now you have no clue what you are talking about.

>
....

>
>>> possible to change the Envelope-From with simple PHP commands like mail()

>
>> [more nonsense]
>
> ISTM you need professional help.
>
>
> PointedEars

Thanks - good post.

Twayne`
>

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[Message index]

		FORMS, validating mail was sent By: bill on Thu, 20 June 2013 17:40
		Re: FORMS, validating mail was sent By: Jerry Stuckle on Thu, 20 June 2013 17:53
		Re: FORMS, validating mail was sent By: J.O. Aho on Thu, 20 June 2013 18:18
		Re: FORMS, validating mail was sent By: The Natural Philosoph on Thu, 20 June 2013 18:24
		Re: FORMS, validating mail was sent By: Jerry Stuckle on Thu, 20 June 2013 18:40
		Re: FORMS, validating mail was sent By: gordonb.vb4vo on Thu, 20 June 2013 19:44
		Re: FORMS, validating mail was sent By: The Natural Philosoph on Thu, 20 June 2013 21:03
		Re: FORMS, validating mail was sent By: bill on Fri, 21 June 2013 18:06
		Re: FORMS, validating mail was sent By: bill on Sat, 22 June 2013 15:42
		Re: FORMS, validating mail was sent By: Thomas 'PointedEars' on Sun, 23 June 2013 11:13
		Re: FORMS, validating mail was sent By: The Natural Philosoph on Sun, 23 June 2013 11:22
		Re: FORMS, validating mail was sent By: bill on Sun, 23 June 2013 17:07
		Re: FORMS, validating mail was sent By: bill on Sun, 23 June 2013 17:00
		Re: FORMS, validating mail was sent By: J.O. Aho on Sun, 23 June 2013 18:22
		Re: FORMS, validating mail was sent By: bill on Sun, 23 June 2013 18:53
		Re: FORMS, validating mail was sent By: gordonb.4qaft on Mon, 24 June 2013 19:43
		Re: FORMS, validating mail was sent By: Peter H. Coffin on Mon, 24 June 2013 20:09
		Re: FORMS, validating mail was sent By: Thomas 'PointedEars' on Tue, 25 June 2013 13:19
		Re: FORMS, validating mail was sent By: Jerry Stuckle on Tue, 25 June 2013 14:11
		Re: FORMS, validating mail was sent By: bill on Tue, 25 June 2013 15:43
		Re: FORMS, validating mail was sent By: bill on Tue, 25 June 2013 15:32
		Re: FORMS, validating mail was sent By: gordonb.htsnc on Thu, 27 June 2013 15:57
		Re: FORMS, validating mail was sent By: Thomas 'PointedEars' on Thu, 27 June 2013 19:13
		Re: FORMS, validating mail was sent By: Arno Welzel on Fri, 28 June 2013 09:43
		Re: FORMS, validating mail was sent By: gordonb.k0cb7 on Thu, 20 June 2013 20:46
		Re: FORMS, validating mail was sent By: Jerry Stuckle on Thu, 20 June 2013 21:03
		Re: FORMS, validating mail was sent By: gordonb.udxst on Sat, 22 June 2013 00:26
		Re: FORMS, validating mail was sent By: Jerry Stuckle on Sat, 22 June 2013 00:36
		Re: FORMS, validating mail was sent By: bill on Sat, 22 June 2013 16:04
		Re: FORMS, validating mail was sent By: Christoph Michael Bec on Thu, 20 June 2013 21:39
		Re: FORMS, validating mail was sent By: Tim Streater on Fri, 21 June 2013 09:11
		Re: FORMS, validating mail was sent By: The Natural Philosoph on Fri, 21 June 2013 10:25
		Re: FORMS, validating mail was sent By: Tim Streater on Fri, 21 June 2013 11:27
		Re: FORMS, validating mail was sent By: The Natural Philosoph on Fri, 21 June 2013 16:59
		Re: FORMS, validating mail was sent By: Tim Streater on Fri, 21 June 2013 17:25
		Re: FORMS, validating mail was sent By: The Natural Philosoph on Fri, 21 June 2013 22:43
		Re: FORMS, validating mail was sent By: Tim Streater on Sat, 22 June 2013 12:45
		Re: FORMS, validating mail was sent By: bill on Sat, 22 June 2013 16:20
		Re: FORMS, validating mail was sent By: Peter H. Coffin on Thu, 20 June 2013 22:27
		Re: FORMS, validating mail was sent By: The Natural Philosoph on Fri, 21 June 2013 06:57
		Re: FORMS, validating mail was sent By: bill on Sat, 22 June 2013 16:02
		Re: FORMS, validating mail was sent By: GravyCode on Fri, 21 June 2013 18:30

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