Connection timeout is not working

[lashnag]

use SMTPValidateEmail\Validator as SmtpEmailValidator;

$validator = new SmtpEmailValidator('sdmk@prkmail.net', 'no-reply@platron.ru');
$validator->setConnectTimeout(1);
$smtpResults = $validator->validate();

It is waiting 3 minute

Bacause of timeout command_timeouts
If you send timeout using setTimeout - you need to use that setting

[zytzagoo]

I cannot replicate this on my end.
When trying those addresses using this code:

<?php

require 'vendor/autoload.php';

use SMTPValidateEmail\Validator as SmtpEmailValidator;

$validator = new SmtpEmailValidator('sdmk@prkmail.net', 'no-reply@platron.ru');
$validator->setConnectTimeout(1);
$smtpResults = $validator->validate();

var_dump($validator->getLog());

I get this output back:

array(13) {
  [0]=>
  string(176) "[2018-08-20T20:34:44.082715+0000] MX records (prkmail.net): Array
(
    [mx02.nicmail.ru] => 5
    [mx01.nicmail.ru] => 10
    [mx03.nicmail.ru] => 20
    [prkmail.net] => 0
)
"
  [1]=>
  string(66) "[2018-08-20T20:34:44.082915+0000] Connecting to mx02.nicmail.ru:25"
  [2]=>
  string(113) "[2018-08-20T20:34:45.086681+0000] Connect failed: Operation timed out, error number: 60, host: mx02.nicmail.ru:25"
  [3]=>
  string(131) "[2018-08-20T20:34:45.087535+0000] Unable to connect. Exception caught: Cannot open a connection to remote host (mx02.nicmail.ru:25)"
  [4]=>
  string(66) "[2018-08-20T20:34:45.087646+0000] Connecting to mx01.nicmail.ru:25"
  [5]=>
  string(113) "[2018-08-20T20:34:46.094921+0000] Connect failed: Operation timed out, error number: 60, host: mx01.nicmail.ru:25"
  [6]=>
  string(131) "[2018-08-20T20:34:46.095091+0000] Unable to connect. Exception caught: Cannot open a connection to remote host (mx01.nicmail.ru:25)"
  [7]=>
  string(66) "[2018-08-20T20:34:46.095169+0000] Connecting to mx03.nicmail.ru:25"
  [8]=>
  string(113) "[2018-08-20T20:34:47.098451+0000] Connect failed: Operation timed out, error number: 60, host: mx03.nicmail.ru:25"
  [9]=>
  string(131) "[2018-08-20T20:34:47.098684+0000] Unable to connect. Exception caught: Cannot open a connection to remote host (mx03.nicmail.ru:25)"
  [10]=>
  string(62) "[2018-08-20T20:34:47.098888+0000] Connecting to prkmail.net:25"
  [11]=>
  string(179) "[2018-08-20T20:34:47.100904+0000] Connect failed: php_network_getaddresses: getaddrinfo failed: nodename nor servname provided, or not known, error number: 0, host: prkmail.net:25"
  [12]=>
  string(127) "[2018-08-20T20:34:47.101035+0000] Unable to connect. Exception caught: Cannot open a connection to remote host (prkmail.net:25)"
}

To me, with data from the debug timestamps, this looks like connection attempts failed/timed-out after 1 sec, as requested/specified. So, it appears that connection timeout is working as intended, no?

Command-specific timeouts have nothing to do with the connection timeout. They are set as per the (old) RFCs -- feel free to change them yourself if you wish (and/or if you think they are the cause of your delays...).

A far more likely cause is that the server is throttling you on purpose (due to what the server thinks is unacceptable behaviour).

If I understand you correctly regarding:

Bacause of timeout command_timeouts
If you send timeout using setTimeout - you need to use that setting

This might mean you are suggesting an enhancement/change/fix in the sense that you feel that setConnectTimeout(1) should automatically set all timeouts to 1 -- if that is the case, feel free to fork and/or create a PR in which that happens (should be rather simple). Ideally, keep that change behind a flag or similar guard (so that default behaviour remains the same as it was, for backwards compatibility).

Whether it'll get merged, I don't know -- but that does not matter if it ends up working for your use-case anyway.