Attachments sizes and formats

There are some format and size requirements when sending attachments due to limitations on the sales channels side. Note that it is the sales channel which is the final receiver of the attachment and Rentals United needs to match their policy. In such a case, you will receive a relevant notification in the chat.

Size and format limits in Rentals United:

	Number of files	Size	Total size	Supported formats
Airbnb	20	3.5 MB	22 MB	JPEG, JPG, GIF and PNG
Booking.com	20	10 MB	22 MB	JPEG, JPG and PNG
Vrbo	20	10 MB	22 MB	JPEG, JPG, GIF and PNG
Expedia	20	5 MB	22 MB	JPEG, JPG and PNG
Other channels	20	7.5 MB	22 MB	JPEG, JPG, GIF and PNG

Size and format limits in Rentals United API:

	Number of files	Size (Base64)	Total size (Base64)	Supported formats
`Airbnb`	20	5 MB	30 MB	JPEG, JPG, GIF and PNG
`BookingCom`	20	13 MB	30 MB	JPEG, JPG and PNG
`Vrbo`	20	13 MB	30 MB	JPEG, JPG, GIF and PNG
Expedia	20	6.9 MB	30 MB	JPEG, JPG and PNG
`Email`	20	10 MB	30 MB	JPEG, JPG, GIF and PNG

Note: There are no size limits on the Rentals United side for the incoming messages, the above size limits apply to outcoming messages only. Rentals United follows the rules imposed by sales channels.

Note: Vrbo does not accept file extensions in the uppercase format, e.g. image.PNG. Instead, use the lowercase format, e.g. image.png.

If you are using Guest Communication via email proxy, make sure that the attachment size limits in your mailbox client are at least as the limits above. If the limits are lower, attachments will not be processed successfully by your mailbox. Here you can read about different mailbox clients’ limits: Gmail, Apple Mail, Microsoft Outlook or Yahoo.