Failed to connect to localhost:25 error : Horde error

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Failed to connect to localhost:25 error : Horde error

Postby HR-ADMIN » Fri May 31, 2013 10:05 pm

Hello All,
Below is the commom error with the Horde which can be Fix using the steps :

Failed to connect to localhost:25 [SMTP: Invalid response code received from server (code: 421, response: Too many concurrent SMTP connections; please try again later.)]

To resolve above error simply change SMTP port from 25 to new SMTP port in following file.
root@server [/usr/local/cpanel/base/horde/imp/config]# Pico servers.php

And change following line

‘smtpport’ => 25,
‘smtpport’ => 26,

We have taken new port as 26 for example you can use any port as per your requirement.
Similar problem with “Squirrelmail” then refer following steps.

root@server [/usr/local/cpanel/base/3rdparty/squirrelmail/config]#pico config_default.php

Change following line

$smtpPort = 25;
$smtpPort = 26;

Save file and exit and now open the webmail.
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