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Re: FORMS, validating mail was sent [message #181893 is a reply to message #181874]

Fri, 21 June 2013 09:11

Tim Streater
Messages: 328
Registered: September 2010

Karma:

Senior Member

In article <51c37641$0$6623$9b4e6d93(at)newsspool2(dot)arcor-online(dot)net>,
Christoph Michael Becker <cmbecker69(at)arcor(dot)de> wrote:

> Am 20.06.2013 22:46, schrieb Gordon Burditt:
>>> I'm a PHP near-newbie working fairly successfully on creating a secure
>>> PHP e-mail (mail()) function. It occurs to me that the only way a user
>>> knows (thinks) a form has been sent, is that I tell him so either in a
>>> line of code or with a Thank You page.
>>
>> Since you're a near-newbie, please save the world from having to
>> block email from your server, and DO NOT put any variables in email
>> headers, DO NOT put any variables from the user in email headers,
>> and DO NOT put any variables set in your form in email headers.
>> Put them in the body of the mail.
>
> Or use at least a good email library which caters for security issues
> and other "details" regarding correct headers.
>
> And one should not forget that not everything could be put in the
> message body--at least not without proper setting of some headers.
>
>> Wrong: From: $email
>> Right: From: www-data(at)myserver(dot)hostingco(dot)com
>>
>> Some servers are going to require that (a) the From: address is
>> local, (b) the From: address is a valid local user, and perhaps (c)
>> the user name must match the user id of the code that called the
>> MTA. In other words, there might be only one correct From: line
>> you're allowed to use.
>
> Indeed, but the OP may *try* if custom From headers are allowed on his
> webspace.
>
>> (For a mailing list to customers, you're stuck with a variable
>> in the To:, Cc:, or Bcc: headers. )
>
> In my limited experience Cc and Bcc headers *might* be blocked by the ISP.

Well you shouldn't be sending a Bcc: header, now, should you? :-)

And why should it block a cc: header anyway? It's just part of the data.

--
Tim

"That excessive bail ought not to be required, nor excessive fines imposed,
nor cruel and unusual punishments inflicted" -- Bill of Rights 1689

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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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