I have problems sending email (IMAP and POP accounts)

If you are able to receive email messages but cannot send them, try the following:

Turn on authentication (see Set up email when automatic setup fails). Many service providers require authenticated access, or ESMTP, to use their SMTP servers for outgoing mail.

Turn off Wi-Fi if you are connected to a Wi-Fi network (see Turn Wi-Fi on/ off). This allows your smartphone to send email over the phone network instead. Some Wi-Fi networks prevent outgoing mail messages.

Confirm the port number for the outgoing mail server. Many ISPs require a specific port number, and that number may differ from the default port number.

Enter the name of a different outgoing mail server for sending mail (see Set up email when automatic setup fails). Many ISPs, such as cable companies, require that you have an Internet connection to their network to send email through their servers. In this case, you can almost always receive email from these accounts, but if you want to send email, you must send it through another server. Check with your email service provider for the correct outgoing mail server name.

I can send but not receive email (IMAP accounts)

Some IMAP email providers don’t support the setting to receive email As items arrive. Check with your email provider to see if this situation applies to your account. If your smartphone is set to receive email as it arrives, try changing the Sync setting for Get Email to 5 or 10 minutes (see Enter advanced account settings).

After I receive messages, older messages disappear from my Inbox

When email sync takes place, by default, the last three days’ worth of email messages is downloaded from your mail server to your Inbox. All messages older than three days are removed from your Inbox; they are not deleted on the server, however.

You can change the setting to download only one or two days’ worth of messages. If you select one of these options, any messages older than one or two days are deleted from your Inbox. You can also change the setting to download all messages regardless of the date, in which case all messages continue to appear in your Inbox (see Enter advanced account settings).

I have trouble sending or receiving attachments

Email attachments smaller than 150KB are downloaded automatically. All other attachments have to be downloaded manually by tapping the attachment name in the email. You may need to tap the attachment to complete receiving it.

Sometimes an attachment to an email may prevent the email from being sent. The reason may be related to the account, an account setting, or the file. To determine whether this is the case, try sending the email without the attachment, or try sending the email from a different email account. If a different account works, check the settings of the problem account. If sending the email without the attachment works, also check the account settings, and try sending the email with another file, in case the first file was damaged.

Messaging

I can’t send or receive text or multimedia messages

Make sure that the phone is on (see Turn wireless services off (airplane mode)).

For multimedia messages, do the following:

Contact AT&T to verify that your plan includes messaging services, that these services have been correctly activated on your smartphone, and that they are available at your location. (AT&T should be able to tell you if messaging services have been experiencing transmission delays.)

Turn off the phone by turning on airplane mode, and then turn off airplane mode (see Turn wireless services off (airplane mode)).

Chapter 14 : Troubleshooting

231