Attachments to email message

How large an attachment may be successfully sent with a relatively short message?

slmathews wrote: Thu Apr 02, 2026 9:01 pm How large an attachment may be successfully sent with a relatively short message?

It's fairly likely nobody here knows any closer than an order of magnitude. You could experiment with messages to either yourself or someone else nearby to get a more precise idea of any limit involved.

Another thing to watch out for when sending attachments via Church IT systems is there was (and maybe still is) a bug that sent (or sends) binary attachments as base64-encoded with lines much longer than allowed by relevant RFCs. Depending on what systems the attachment goes through, the attachment may get truncated or perhaps otherwise corrupted.

More information about the problem that was (and maybe still is) corrupting attachments can be found in and around these posts:

viewtopic.php?p=210805#p210805

viewtopic.php?p=205942#p205942

slmathews wrote: Thu Apr 02, 2026 9:01 pm How large an attachment may be successfully sent with a relatively short message?

As large as the most restrictive email domain that is in use in your ward/stake.