Mass E-mail Bug

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Mass E-mail Bug

Post by lichang422 » Fri Jan 12, 2018 4:23 pm

Support Request Template
What version of phpBB are you using? phpBB 3.2.2
What is your board's URL?
Who do you host your board with? admin
How did you install your board? I used the download package from
What is the most recent action performed on your board? Please select your answer
Is registration required to reproduce this issue? No
Do you have any MODs installed? No
Do you have any extensions installed? No
What styles do you currently have installed? IDLaunch_Fresh
What language(s) is your board currently using? Traditional Chinese
Which database type/version are you using? MySQL 5
What is your level of experience? New to PHP and phpBB
What actions did you take (updating your board; installing a MOD, style or extension; etc.) prior to this problem becoming noticeable? Send E-mail to group by ACP(Administrator Control Panel)
Please describe your problem.

I try to send mail to one person.
It is OK

But when I try to send mail to 2 or more person.
It will show "Errno 2: mail(): SMTP server response: 553 5.1.3 <undisclosed-recipients:;>... List:; syntax illegal for recipient addresses at [ROOT]/includes/functions_messenger.php line 1799"

I checked about messenger.php line 1799, it is wroten
$result = mail($to, mail_encode($subject, ''), wordwrap(utf8_wordwrap($msg), 997, "\n", true), $headers, $additional_parameters);

Does anybody know how to solve it ??

My system is phpbb3 3.2.2 and window 10 pro.

Thank you for your answer

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