
It is possible to send multiple photos in an email on the iPhone, but you need to start in the iPhone’s Photo app, not the Mail app like you’d assume. Below are step-by-step instructions for attaching multiple photos to an email.
1. Launch the Photo App:
2. Tap the album where the photos are located:

3. You’ll see a bunch of thumbnails of the pictures in the album. Tap the Share button in the bottom left corner:

4. Tap the pictures you want to share in the email (you can tap more than one). A red check mark will appear on each photo to indicate you’ve selected it:

5. Tape Share in the bottom left.

6. Tap Email:

7. A new email will pop up with your photos inserted into the email:

Choose your recipients, write a subject and message, and hit Send.
Notes and Tips:
In Step 5, you’ll also notice a button that says Copy. Selecting Copy will also let you share multiple photos in an email–it just takes a few more steps than using the Share button (with Copy, you’ll have to open the Mail app yourself and then paste the photos).

Using the Copy button does have one big advantage: it allows you to send full-resolution pictures. You may not know that the iPhone automatically shrinks your pictures taken with the iPhone’s camera from 2048 x 1536 to 800 x 600 in size when you send them in an email via Share. Use Copy and Paste to get the full resolution.
The main downside to using Copy to share photos is that the email will take much longer to send over 3G/EDGE because of the larger file sizes.
Be sure to check out more of our posts on iPhone Basics.
#1 by Jose Luis Rivero on July 9th, 2009
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Nice and interest hint!
#2 by Roger on December 28th, 2009
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Thanks for the tips! I would have never known about the resolution issue.
#3 by yabbox on January 10th, 2010
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One thing to note, when ’sharing’ you can only select a maximum of 5 images.
If you ‘copy’, there doesn’t seem to be any limitations.
#4 by Lisa on January 18th, 2010
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On behalf of the new to iphone and not as tech savvy as others, I thank you!
#5 by Rich on February 24th, 2010
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Great…thanks, racking my brains trying to figure it out until I came across your advice.
#6 by Brent on March 8th, 2010
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Another tip is to tap the photos in the order you want them to display in the e-mail before tapping Share.