Mailer: Other SMTP
SMTP Error: The following recipients failed: dean.c.r.affo.r.d...zar@gmail.com: The recipient address  is not a
valid RFC 5321 address. For more information, go to
 https://support.google.com/a/answer/3221692 and review RFC 5321
specifications. 956f58d0204a3-649f255ea25sm726012d50.17 - gsmtp