Can not send to multiple recipients using CC/BCC

[McTristan]

It seems to be impossible to address multiple recipients using CC or BCC fields.

Whenever I try to address them like this in CC oder BCC-field: bla@blub.com, bli@bla.com it seems RoundCube puts them in double brackets like this "<>" which leads to a "550 unknown user"-error.

I'm using hMailServer and tried only to address people on my server so the error message might vary a bit on an external server.

However it works when I try to address them directly with the "To:"-Field.

I.e:

To: bla@blub.com, bli@bla.com

would work flawless while

BCC: bla@blub.com, bli@bla.com

would not work at all.

I recognized this behaviour also with version 0.2 of roundcube but thought it would have been fixed. Maybe this problem occurs only in conjunction with hMailServer?!

The Roundcube Errorlog shows the following error:

[24-Nov-2009 10:02:56] PHP Warning:  mail() [function.mail]: SMTP server response: 550 Unknown user in D:\Inetpub\wwwroot\mail\program\steps\mail\func.inc on line 1389

My E-Mailserver log:

"SMTPD"   3840   3873   "2009-11-24 09:49:27.146"   "127.0.0.1"   "RECEIVED: HELO WIN-XXXXXXXXXX"
"SMTPD"   3840   3873   "2009-11-24 09:49:27.146"   "127.0.0.1"   "SENT: 250 Hello."
"SMTPD"   5712   3873   "2009-11-24 09:49:27.146"   "127.0.0.1"   "RECEIVED: MAIL FROM:"
"SMTPD"   5712   3873   "2009-11-24 09:49:27.148"   "127.0.0.1"   "SENT: 250 OK"
"SMTPD"   5184   3873   "2009-11-24 09:49:27.148"   "127.0.0.1"   "RECEIVED: RCPT TO:"
"SMTPD"   5184   3873   "2009-11-24 09:49:27.148"   "127.0.0.1"   "SENT: 250 OK"
"SMTPD"   3840   3873   "2009-11-24 09:49:27.149"   "127.0.0.1"   "RECEIVED: RCPT TO:<>"
"SMTPD"   3840   3873   "2009-11-24 09:49:27.153"   "127.0.0.1"   "SENT: 550 Unknown user"
"SMTPD"   1660   3873   "2009-11-24 09:49:27.153"   "127.0.0.1"   "RECEIVED: QUIT"
"SMTPD"   1660   3873   "2009-11-24 09:49:27.154"   "127.0.0.1"   "SENT: 221 goodbye"

[rosali]

I don't see this with hMailServer. Do you use php mail function to relay the messages or did you configure RoundCube to connect directly to hMailServer by SMTP ($rcmail_config['smtp_server'] etc.)?

[McTristan]

I'm using PHPmail for sending, will try to use SMTP - wait.

[Update] Is does only occur when using PHPs mail function - weird. Using SMTP it works fine.

[rosali]

PHP mail is buggy on windows.