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Most sends typically go well, but it's not all that unusual to have
things go awry... whether on the initial send (which BLAT will usually
report) or with a later bounceback from a later mail server in the chain
(and sometimes that will occur after an e-mail has been reforwarded!)
Checking the return code returned by BLAT is of course a good idea.
You can also have a program scan the log you've recorded to check to
make sure that things have gone normally, and to issue retries if
necessary (and that program ought to try various strategies, including
trying later (the server could be temporarily down or restarting), and
counting how many retries have been done already... there's no point in
continuing to retry if something just isn't going to work.
But just because BLAT didn't see a problem (because it sent to the first
SMTP server) doesn't mean that it got to the final addressee properly.
Another good technique is to also have a program scan the reply address
Inbox to check for bounces that get reported that way. One reason why
that's VERY important is because some mail systems (e.g. AOL, IIRC) will
stop accepting ALL e-mails from your end (to ALL their addressees) if
they've bounced mail back to you and you keep sending mail to those
bouncing addresses! So you need to check your local files before you
send to see if the address you're going to send to has been bouncing.
The biggest challenge here is that these bouncing messages can appear in
a HUGE diversity of formats (and those formats can change without
warning), and the mail can bounce for many different kinds of reasons.
For example, I had sent a mail within the last week and it bounced back
because it had been forwarded "too many" times...!
For doing this kind of thing right, I use programs written in SPITBOL (a
textual pattern matching language... FAST, and WONDERFUL for stuff like
this) both for scripting the original BLAT sending, processing your
logged sends, and to fetch and track/process the e-mails that come back
(including, but not limited to, bouncebacks). SPITBOL doesn't depend on
regular expressions, and has FAR better textual pattern recognition (and
general processing) abilities than just about anything else. It's an
(insanely good) implementation of the SNOBOL4 programming language
(which originated back at Bell Labs, about the time they were also
working on C and Unix). It's much better than PERL, which is probably
what most people who don't know better would try to use for stuff like this.
[quote]
1a. Re: Not continuous error
> Posted by: "Chip" [email protected] chipprogrammer
> Date: Wed Apr 10, 2019 10:37 pm ((PDT))
>
>> Hello everyone, inserted this lines on a code:
>>
>> LOCAL cFileBlat := "B1" + LEFT(cHora,2) + SUBSTR(cHora,4,2) +
>> SUBSTR(cHora,7,2) + ".Bat"
>> LOCAL cText := "Blat mensaje.txt -to
>> " + ALLTRIM(oHdr:TOE) + " -s Aprobacion" + " -log blatlog.txt"
>>
>>
>> This is to create a .bat to send automatically an e-mail, almost all the
>> mails go fine but sometimes drops the connection, this is the log:
>>
>> 2019.04.09 10:54:37 (Tue)------------Start of Session-----------------
>> Blat v3.2.19 (build : Nov 18 2017 03:14:35)
>> 32-bit Windows, Full, Unicode
>> Sending mensaje.txt to [email protected]
>> Subject: Aprobacion
>> Login name is [email protected]
>> 2019.04.09 10:54:39 (Tue)-------------End of Session------------------
>>
>> 2019.04.09 10:55:29 (Tue)------------Start of Session-----------------
>> Blat v3.2.19 (build : Nov 18 2017 03:14:35)
>> 32-bit Windows, Full, Unicode
>> Sending mensaje.txt to [email protected]
>> Subject: Aprobacion
>> Login name is [email protected]
>> 2019.04.09 10:55:31 (Tue)-------------End of Session------------------
>>
>> 2019.04.09 10:55:59 (Tue)------------Start of Session-----------------
>> Blat v3.2.19 (build : Nov 18 2017 03:14:35)
>> 32-bit Windows, Full, Unicode
>> Sending mensaje.txt to [email protected]
>> Subject: Aprobacion
>> Login name is [email protected]
>> 2019.04.09 10:56:01 (Tue)-------------End of Session------------------
>>
>> 2019.04.09 11:17:16 (Tue)------------Start of Session-----------------
>> Blat v3.2.19 (build : Nov 18 2017 03:14:35)
>> 32-bit Windows, Full, Unicode
>> Error: Connection to server was dropped.
>> *** Error *** SMTP server error
>> Error: Not a socket.
>> Error: Not a socket.
>> 2019.04.09 11:17:38 (Tue)-------------End of Session------------------
>>
>> By chance someone knows how to maintain the connection up all the time?
>>
>> Thanks a lot in advance.
>
> Maybe with a telnet session? If the server is going to drop your
> connection, there is nothing you can do. In your last entry, Blat will
> return an error which you can check in your program. If Blat returns zero,
> then everything was good.
>
> Chip
>
---
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--OY9Bd1T9C8tEXuW9jKkaWi5taJprtYgH6oRiqvs
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<p>Most sends typically go well, but it's not all that unusual to=
have <br>
things go awry... whether on the initial send (which BLAT will usually <br>
report) or with a later bounceback from a later mail server in the chain <b=
r>
(and sometimes that will occur after an e-mail has been reforwarded!)<br>
<br>
Checking the return code returned by BLAT is of course a good idea.<br>
<br>
You can also have a program scan the log you've recorded to check to <b=
r>
make sure that things have gone normally, and to issue retries if <br>
necessary (and that program ought to try various strategies, including <br>
trying later (the server could be temporarily down or restarting), and <br>
counting how many retries have been done already... there's no point in=
<br>
continuing to retry if something just isn't going to work.<br>
<br>
But just because BLAT didn't see a problem (because it sent to the firs=
t <br>
SMTP server) doesn't mean that it got to the final addressee properly.<=
br>
<br>
Another good technique is to also have a program scan the reply address <br=
>
Inbox to check for bounces that get reported that way. One reason why <br>
that's VERY important is because some mail systems (e.g. AOL, IIRC) wil=
l <br>
stop accepting ALL e-mails from your end (to ALL their addressees) if <br>
they've bounced mail back to you and you keep sending mail to those <br=
>
bouncing addresses!=C2=A0=C2=A0 So you need to check your local files befor=
e you <br>
send to see if the address you're going to send to has been bouncing.<b=
r>
<br>
The biggest challenge here is that these bouncing messages can appear in <b=
r>
a HUGE diversity of formats (and those formats can change without <br>
warning), and the mail can bounce for many different kinds of reasons.=C2=
=A0 <br>
For example, I had sent a mail within the last week and it bounced back <br=
>
because it had been forwarded "too many" times...!<br>
<br>
For doing this kind of thing right, I use programs written in SPITBOL (a <b=
r>
textual pattern matching language... FAST, and WONDERFUL for stuff like <br=
>
this) both for scripting the original BLAT sending, processing your <br>
logged sends, and to fetch and track/process the e-mails that come back <br=
>
(including, but not limited to, bouncebacks).=C2=A0 SPITBOL doesn't dep=
end on <br>
regular expressions, and has FAR better textual pattern recognition (and <b=
r>
general processing) abilities than just about anything else.=C2=A0 It's=
an <br>
(insanely good) implementation of the SNOBOL4 programming language <br>
(which originated back at Bell Labs, about the time they were also <br>
working on C and Unix).=C2=A0 It's much better than PERL, which is prob=
ably <br>
what most people who don't know better would try to use for stuff like =
this.<br>
<br>
[quote]<br>
<br>
1a. Re: Not continuous error<br>
> Posted by: "Chip" [email protected] chipprogramme=
r<br>
> Date: Wed Apr 10, 2019 10:37 pm ((PDT))<br>
><br>
>> Hello everyone, inserted this lines on a code:<br>
>><br>
>> LOCAL cFileBlat :=3D "B1" + LEFT(cHora,2) + SUBSTR(cHora=
,4,2) +<br>
>> SUBSTR(cHora,7,2) + ".Bat"<br>
>> LOCAL cText :=3D "Blat m=
ensaje.txt -to<br>
>> " + ALLTRIM(oHdr:TOE) + " -s Aprobacion" + " -=
log blatlog.txt"<br>
>><br>
>><br>
>> This is to create a .bat to send automatically an e-mail, almost a=
ll the<br>
>> mails go fine but sometimes drops the connection, this is the log:=
<br>
>><br>
>> 2019.04.09 10:54:37 (Tue)------------Start of Session-------------=
----<br>
>> Blat v3.2.19 (build : Nov 18 2017 03:14:35)<br>
>> 32-bit Windows, Full, Unicode<br>
>> Sending mensaje.txt to [email protected]<br>
>> Subject: Aprobacion<br>
>> Login name is [email protected]<br>
>> 2019.04.09 10:54:39 (Tue)-------------End of Session--------------=
----<br>
>><br>
>> 2019.04.09 10:55:29 (Tue)------------Start of Session-------------=
----<br>
>> Blat v3.2.19 (build : Nov 18 2017 03:14:35)<br>
>> 32-bit Windows, Full, Unicode<br>
>> Sending mensaje.txt to [email protected]<br>
>> Subject: Aprobacion<br>
>> Login name is [email protected]<br>
>> 2019.04.09 10:55:31 (Tue)-------------End of Session--------------=
----<br>
>><br>
>> 2019.04.09 10:55:59 (Tue)------------Start of Session-------------=
----<br>
>> Blat v3.2.19 (build : Nov 18 2017 03:14:35)<br>
>> 32-bit Windows, Full, Unicode<br>
>> Sending mensaje.txt to [email protected]<br>
>> Subject: Aprobacion<br>
>> Login name is [email protected]<br>
>> 2019.04.09 10:56:01 (Tue)-------------End of Session--------------=
----<br>
>><br>
>> 2019.04.09 11:17:16 (Tue)------------Start of Session-------------=
----<br>
>> Blat v3.2.19 (build : Nov 18 2017 03:14:35)<br>
>> 32-bit Windows, Full, Unicode<br>
>> Error: Connection to server was dropped.<br>
>> *** Error *** SMTP server error<br>
>> Error: Not a socket.<br>
>> Error: Not a socket.<br>
>> 2019.04.09 11:17:38 (Tue)-------------End of Session--------------=
----<br>
>><br>
>> By chance someone knows how to maintain the connection up all the =
time?<br>
>><br>
>> Thanks a lot in advance.<br>
><br>
> Maybe with a telnet session? If the server is going to drop your<br>
> connection, there is nothing you can do. In your last entry, Blat wil=
l<br>
> return an error which you can check in your program. If Blat returns =
zero,<br>
> then everything was good.<br>
><br>
> Chip<br>
><br>
<br>
---<br>
This email has been checked for viruses by Avast antivirus software.<br>
https://www.avast.com/antivirus<br>
<br>
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