# Beta Vs. 89.0b1 (64-bit)--Can't SEND through the Gmail POP3 SMTP interface

**URL:** <https://discourse.mozilla.org/t/beta-vs-89-0b1-64-bit-cant-send-through-the-gmail-pop3-smtp-interface/79398>\
**Category:** Beta\
**Created:** [April 28, 2021, 12:20am UTC](https://discourse.mozilla.org/t/beta-vs-89-0b1-64-bit-cant-send-through-the-gmail-pop3-smtp-interface/79398 "2021-04-28T00:20:34Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![lindawing](https://avatars.discourse-cdn.com/v4/letter/l/eb8c5e/32.png) [@lindawing](https://discourse.mozilla.org/u/lindawing)\
**Post date:** [April 28, 2021, 12:20am UTC](https://discourse.mozilla.org/t/beta-vs-89-0b1-64-bit-cant-send-through-the-gmail-pop3-smtp-interface/79398/1 "2021-04-28T00:20:35Z")

</div>

I can’t send anything out through any of my Gmail accounts, since yesterday, 04/26/2021…the day I updated to 89.0b1 (64-bit). I can send just fine, using my own server’s smtp, if I switch to one of my own account usernames in order to send.

I’ve checked the setup info on Google, and it hasn’t changed.

I’ve just seen that someone using 89.0b1 (64-bit) on macOS Big Sur is having a similar problem.

I’m RECEIVING my Gmails perfectly…it’s just the SENDING that’s hanging up.

---

<div class="post-metadata">

**Author:** ![Mark\_London](https://avatars.discourse-cdn.com/v4/letter/m/bbce88/32.png) [@Mark\_London](https://discourse.mozilla.org/u/Mark_London)\
**Post date:** [April 29, 2021, 3:15pm UTC](https://discourse.mozilla.org/t/beta-vs-89-0b1-64-bit-cant-send-through-the-gmail-pop3-smtp-interface/79398/2 "2021-04-29T15:15:56Z")

</div>

Have you tried sending a whole new message vs doing a reply?

My mac user here discovered that he couldn’t do a reply, but could send a new message. He later discovered he could do a reply, as long as he deleted the text from the message he was replying to.

This needs to be fixed immediately! 🙂

---

<div class="post-metadata">

**Author:** ![Mark\_London](https://avatars.discourse-cdn.com/v4/letter/m/bbce88/32.png) [@Mark\_London](https://discourse.mozilla.org/u/Mark_London)\
**Post date:** [April 29, 2021, 3:23pm UTC](https://discourse.mozilla.org/t/beta-vs-89-0b1-64-bit-cant-send-through-the-gmail-pop3-smtp-interface/79398/3 "2021-04-29T15:23:54Z")

</div>

See if the reported problem with the main release, helps to solve your problem.

[https://support.mozilla.org/en-US/questions/1334263](https://support.mozilla.org/en-US/questions/1334263)

---

<div class="post-metadata">

**Author:** ![sfhowes](https://avatars.discourse-cdn.com/v4/letter/s/958977/32.png) [@sfhowes](https://discourse.mozilla.org/u/sfhowes)\
**Post date:** [April 30, 2021, 5:06pm UTC](https://discourse.mozilla.org/t/beta-vs-89-0b1-64-bit-cant-send-through-the-gmail-pop3-smtp-interface/79398/4 "2021-04-30T17:06:34Z")

</div>

Does it work if you change the two preferences noted in the pink text here?

[https://www.thunderbird.net/en-US/thunderbird/88.0beta/releasenotes/](https://www.thunderbird.net/en-US/thunderbird/88.0beta/releasenotes/)

Is the authentication on the incoming and outgoing gmail servers OAuth2?