email form can't handle multiple addresses

[andywalz]

allow csv, handle semi-colons:

Delivery to the following recipient failed permanently:

[email protected]; [email protected]

Technical details of permanent failure:
Internal parse error: Illegal envelope To: address (not valid RFC5321 syntax): [email protected]; [email protected]

----- Original message -----

DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
d=gmail.com; s=20120113;
h=date:to:from:subject:message-id:mime-version:content-type
:content-transfer-encoding;
bh=/JaPmcPq1FxnsyZK0NXnH8WklC66qyvRXvarO14thQU=;
b=IFsofSqVcRGHN3WiYTbzBZsPa911HtEIAyF0YbJVnAF6G0MB0VtjY4Yp0AsK3X6P/F
ZmvXXCvMnvFCQjtYFRTImEpkTGKqOor0Dct+N4oVGUiQ5ttUEqtx+u0Q2oIMUcqH0DEj
oLzKdHrH+vxnXhwOk7bbqx6YNFlmunOueFThKZbTZENP5J2P62z2U9Mmjrc1w8kAh9K2
dv8XuzfxLuONOeLD53Sw/HWFvYtxdQ0d06YH9uhNXtHEe6QUADIapA1gKP+DOJbf7bDD
GBDX7MhC4HoTi1YiHNXvdUKCXDBSfWHICu5hTL84ORtsIPaRgkDLY1mFOCh/8z/Z55Kr
f/xg==
X-Received: by 10.50.83.73 with SMTP id o9mr22665967igy.40.1443534223334;
Tue, 29 Sep 2015 06:43:43 -0700 (PDT)
Return-Path: [email protected]
Received: from solar.maps.umn.edu (arachnid.socsci.umn.edu. [134.84.151.68])
by smtp.gmail.com with ESMTPSA id e65sm11203149ioj.14.2015.09.29.06.43.42
for <[email protected]; [email protected]>
(version=TLSv1 cipher=RC4-SHA bits=128/128);
Tue, 29 Sep 2015 06:43:42 -0700 (PDT)
Date: Tue, 29 Sep 2015 08:43:42 -0500
Return-Path: [email protected]
To: [email protected]; [email protected]
From: Alex Gast [email protected]
Subject: Solar Suitability Report
Message-ID: [email protected]
X-Priority: 3
X-Mailer: PHPMailer 5.2.7 (https://github.com/PHPMailer/PHPMailer/)
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="b1_a17eb0faaeb568056283f4b10d10895f"
Content-Transfer-Encoding: 8bit

A Solar Suitability Analysis Report has been shared with you. Click the link below to view:http://solar.maps.umn.edu/app/index.html?lat=44.82510242404244%2526long=-93.81155556979662

[cmartin616]

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