I just recently setup Zoho Activesync on my iPhone and have noticed a problem. Senders with display names containing commas get split into two addresses on the iPhone. For example, if a message is sent from the following:
it shows up on the iPhone as being addressed from Last and First. Last shows as an invalid address since no email address is associated with it. First works since it gets the associated email address. It appears that it's getting confused by the comma in the email display name.
Thanks.
Thomas