I would like to point out that I have done all the checks on the firewall and that port 80 is open for my SMTP server. After typing the command certbot certanly --standalone -d smtp.example.com keeps giving me the error: Fetching http://smtp.example.com/.well-known/acme-challenge/b9MhloMPFv0kOJMvmO…

[image] metodi: port 80 is open for my SMTP server. [image] metodi: Timeout during connect ( likely firewall problem) Well, one of this is wrong then. It's hard to help without the actual domain name. If you want to test connectivity from around the world, run certbot with --debug-chal…

Certbot certonly --standalone -d smtp.example.com

Help

petercooperjr September 20, 2024, 4:31pm 9

5 Likes

Topic		Replies	Views
SSL certificate error (timeout during connection [likely firewall probrem] Help	8	1359	September 3, 2023
Timeout during connect (likely firewall problem) - Ports confirmed open Help	6	931	June 2, 2020
Certbot timing out despite port 80 being exposed and able to serve pages Help	10	716	November 30, 2021
Certbot standalone port 80 issue Help	2	239	May 2, 2024
Http validation failing and no attempt seen in firewall logs on port 80 Help	4	273	February 10, 2024

Certbot certonly --standalone -d smtp.example.com

Related topics