Include alt attribute in open entry point for campaigns

[rorosa]

It could be great if you include the following attribute to get the best score from Spam Filters

<img alt="OpenEntryPoint" width="1" height="1" border="0" src="https://mycompany.com/?entryPoint=campaignTrackOpened&id=5a020aa703a0edb 9a">

[rorosa]

Sorry, I open it as a bug but it is in fact a feature.

[rorosa]

In order to get a 10/10 score in spam filters it is necesary to include the alt atribute within the file https://github.com/espocrm/espocrm/b.../MassEmail.php
, line 386 should be like this:
$trackOpenedHtml = '<img alt="OpenEntryPoint" width="1" height="1" border="0" src="'.$trackOpenedUrl.'">';
instead of $trackOpenedHtml = '<img width="1" height="1" border="0" src="'.$trackOpenedUrl.'">';

[yuri]

Thanks.