Fetching size of message using IMAP command

Question

I am fetching the size of message using following IMAP command.

"$ FETCH UID RFC822.SIZE\r\n"

For some messages the command works properly and returns the message size

"* 3 FETCH (RFC822.SIZE 2376)\r\n$ OK Success\r\n"

But for some emails its not fetching the size of message. It returns only Success message but not the size

Here is the response for some messages.

"$ OK Success\r\n"

Is there any alternative way for fetching the size of message?

Your command isn't legal. The real command has to include an argument to point to the message. What is the real command? — arnt
$ FETCH N RFC822.SIZE\r\n will fetch the size of the Nth message in the mailbox, not the message with a UID of N. If you want to fetch based on UID, then you need to use UID FETCH N RFC822.SIZE\r\n — jstedfast

arnt arnt · Accepted Answer · 2016-06-01T08:43:41

Stepping out on a limb... what you have in mind is x uid fetch 1234 rfc822.size in order to learn the size of the message with UID 1234. However, what you send is y fetch 1234 rfc822.size, and if there are fewer than 1234 messages in the mailbox that command will not work.

Am I guessing correctly?

Fetching size of message using IMAP command

2 Answers