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Re: FORMS, validating mail was sent [message #181904 is a reply to message #181868]

Fri, 21 June 2013 18:06

bill
Messages: 310
Registered: October 2010

Karma:

Senior Member

Just a short note for right now; I have to leave but I'll be back later
with responses and clarifications that will make things clearer, I hope.

Twayne`

On 2013-06-20 3:44 PM, Gordon Burditt wrote:
>> Not easy. I usually include myself in the mailing list.
>>
>> BUT even so if there are bad mail addresses, then you need to set
>> yourself as the bounce target as well, to see those.
>> In general in a *nix platform the messages will be recieved by the SMTP
>> forwarding agent, and then get queued and a queue run will take place
>> immediately.
>>
>> to check the mail queue there is a system command mailq which should
>> return empty.
>
> However, checking the mail queue doesn't tell you much. If a test
> tells you that you might be ugly if it's positive and you might be
> ugly if it's negative, why run the test at all? The mail queue may
> be empty because:
> + Your mail was dropped on the floor for having an invalid
> From: address. Valid From: addresses likely include ONLY
> those with the host name of the server you are sending
> from and a known valid user on that system. Typically
> only a few users like root can send mail with 'fake'
> (off-system) From: addresses. Hint: Do NOT put a
> user-supplied email address in the From: header.
>
> + Your mail was already sent on.
>
> + Your mail has already bounced.
>
> + Your mail was already dropped for policy reasons like
> sending over a number of addresses in a given hour.
>
> The mail queue may *not* be empty because:
> + If the system load was high, the "immediate queue run" may
> not be so immediate.
>
> + Someone's been sending a lot of mail. It is not at all
> difficult to back up a mail server sending one email per second
> (we'll assume you are sending individual copies because
> they are personalized) and starting a queue run each time.
>
> + Someone (perhaps another user of your site) just sent
> mail a few milliseconds ago.
>
> + The intended recipient has a slow DNS server. If you
> send emails to 100 recipients at a time, it is likely
> that at least a couple of them have slow DNS servers or
> overloaded mail servers. The mail will stay in the queue
> until the message has been delivered to all recipients,
> and that can take days, even if 98 of them were delivered
> in the first minute.
>
>> But you cant execute that without root privileges. Which means having
>> that level of access to the machine and writing an su 'ed wrapper in C
>> and calling that instead.
>
> Sometimes you can get a queue count without root privileges. The
> program that comes with the MTA for this is likely already setuid-root,
> and you may be able to configure allowing ordinary users to get a
> queue count.
>
>> If apache is running php as 'www-data' or whatever.
>
>> In short there are things you can do, but none are easy and all are
>> outside the scope of 'just' php.

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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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