If you attempt you send an email with either CC or BCC and it's not in the form of name <email address>, the following error is generated:
Notice: Undefined offset: 1 in Drupal\sendgrid_integration\Plugin\Mail\SendGridMail->mail() (line 429 of sendgrid_integration/src/Plugin/Mail/SendGridMail.php
Lines 429-433 contains the following code:
[$mail_cc_address, $cc_name] = $this->parseAddress($mail_id);
$address_cc_bcc[mb_strtolower($key)][] = [
'mail' => $mail_cc_address,
'name' => $cc_name,
];
Fixed
2.0
Code
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
Created MR from attached patch and fixed #7
Changed to major as if both CC and BCC recepients are set, only later one is sent.
Automatically closed - issue fixed for 2 weeks with no activity.