suddenly getting must issue a STARTTLS command first when sending emai to gmail.com account.

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GDFrank

7/13/19 05:33

Suddenly getting must issue a STARTLS command first when sending emai to gmail.com account.

It does not happen on two other gmail accounts.

I removed and added the imap gmail account … still happens.

It works fine on inbound … only problematic on outbound email.

When change the imap setting to STARTTLS, inbound won't work.

Don't see any setting for outbound only setting.

Suddenly getting must issue a STARTLS command first when sending emai to gmail.com account. It does not happen on two other gmail accounts. I removed and added the imap gmail account … still happens. It works fine on inbound … only problematic on outbound email. When change the imap setting to STARTTLS, inbound won't work. Don't see any setting for outbound only setting.

Isisombulu esikhethiweyo

The outgoing server is configured under Tools/Account Settings, Outgoing Server (SMTP) at the bottom of the left pane. The gmail entry should be smtp.gmail.com on port 587, STARTTLS security, authentication = OAuth2, User name = email address. The incoming IMAP server is imap.gmail.com on port 993, SSL/TLS security, authentication = OAuth2, User name = email address. Check that you don't have a security program scanning SSL (secure) connections or outgoing mail.

http://kb.mozillazine.org/Using_Gmail_with_Thunderbird_and_Mozilla_Suite

👍 2

Answer 1 · 2019-07-13 05:33:40

sfhowes

Top 10 Contributor

7/15/19 04:10

Isisombululo esiKhethiweyo

The outgoing server is configured under Tools/Account Settings, Outgoing Server (SMTP) at the bottom of the left pane. The gmail entry should be smtp.gmail.com on port 587, STARTTLS security, authentication = OAuth2, User name = email address. The incoming IMAP server is imap.gmail.com on port 993, SSL/TLS security, authentication = OAuth2, User name = email address. Check that you don't have a security program scanning SSL (secure) connections or outgoing mail.

http://kb.mozillazine.org/Using_Gmail_with_Thunderbird_and_Mozilla_Suite