nodemailer 10.2.0

v10.2.0

on Node.js NPM

10.2.0 (2026-10-21)

Features

• add info.serverMessageId from the final 250 reply (108dddd)
• add pendingCount() to the SMTP pool (6cffb70)
• make header value encoding public with MimeNode encodeHeaderValue() (3b048c7)
• mark SMTP errors as permanent or transient with err.permanent (6a20e2a)

Bug Fixes

• label an ASCII message/rfc822 attachment 7bit instead of 8bit (ad66fa1)
• report the recipients an LMTP server refuses after DATA in rejectedErrors (dd64eb3)