# Hostname "smtp.tavoweb.lt" does not match the server certificate
**URL:** https://meta.discourse.org/t/hostname-smtp-tavoweb-lt-does-not-match-the-server-certificate/95271
**Category:** Self-hosting
**Created:** [August 21, 2018, 10:31am UTC](https://meta.discourse.org/t/hostname-smtp-tavoweb-lt-does-not-match-the-server-certificate/95271 "2018-08-21T10:31:43Z")
**Posts on this page:** 17
**Page:** 1
### Author:  [@savas](https://meta.discourse.org/u/savas)
#### Post date: [August 21, 2018, 10:31am UTC](https://meta.discourse.org/t/hostname-smtp-tavoweb-lt-does-not-match-the-server-certificate/95271/1 "2018-08-21T10:31:43Z")
Sent mail to mano@tavoweb.lt (77.2ms)
Job exception: hostname “smtp.tavoweb.lt” does not match the server certificate
Sent mail to mano@tavoweb.lt (18.1ms)
Job exception: hostname “smtp.tavoweb.lt” does not match the server certificate
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### Author:  [@itsbhanusharma](https://meta.discourse.org/u/itsbhanusharma)
#### Post date: [August 21, 2018, 10:36am UTC](https://meta.discourse.org/t/hostname-smtp-tavoweb-lt-does-not-match-the-server-certificate/95271/2 "2018-08-21T10:36:24Z")
smtp.tavoweb.lt uses an invalid security certificate. The certificate is only valid for server.tavopc.lt.
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### Author:  [@savas](https://meta.discourse.org/u/savas)
#### Post date: [August 21, 2018, 10:37am UTC](https://meta.discourse.org/t/hostname-smtp-tavoweb-lt-does-not-match-the-server-certificate/95271/3 "2018-08-21T10:37:59Z")
So what i must do ?
server.tavopc.lt not working on smtp too i must change hostname ?
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### Author:  [@mpalmer](https://meta.discourse.org/u/mpalmer)
#### Post date: [August 21, 2018, 10:51am UTC](https://meta.discourse.org/t/hostname-smtp-tavoweb-lt-does-not-match-the-server-certificate/95271/4 "2018-08-21T10:51:04Z")
Get whoever runs that SMTP server to install a valid certificate for `server.tavoweb.lt`, or point your config at `server.tavopc.lt` instead.
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### Author:  [@savas](https://meta.discourse.org/u/savas)
#### Post date: [August 21, 2018, 10:52am UTC](https://meta.discourse.org/t/hostname-smtp-tavoweb-lt-does-not-match-the-server-certificate/95271/5 "2018-08-21T10:52:42Z")
server.tavopc.LT 🙂
> [@mpalmer](#):
>
> Get whoever runs that SMTP server to install a valid certificate, or make `server.tavopc.it` point at that server and use that name.
can you explain ?
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### Author:  [@savas](https://meta.discourse.org/u/savas)
#### Post date: [August 21, 2018, 11:08am UTC](https://meta.discourse.org/t/hostname-smtp-tavoweb-lt-does-not-match-the-server-certificate/95271/6 "2018-08-21T11:08:51Z")
> [@mpalmer](#):
>
> or point your config at `server.tavopc.lt` instead.
you mean in app.ymlfile ? if so i triyed and still no luck
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### Author:  [@savas](https://meta.discourse.org/u/savas)
#### Post date: [August 21, 2018, 11:16am UTC](https://meta.discourse.org/t/hostname-smtp-tavoweb-lt-does-not-match-the-server-certificate/95271/7 "2018-08-21T11:16:21Z")
So confused eny changes not giving eny luck can someon explain step by step what to do ?
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### Author:  [@savas](https://meta.discourse.org/u/savas)
#### Post date: [August 21, 2018, 11:34am UTC](https://meta.discourse.org/t/hostname-smtp-tavoweb-lt-does-not-match-the-server-certificate/95271/8 "2018-08-21T11:34:45Z")
Dam if i instaling with ssl geting tomeny redirects error if i installing without ssl mail not sending activation email wthell ?
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### Author:  [@savas](https://meta.discourse.org/u/savas)
#### Post date: [August 21, 2018, 2:03pm UTC](https://meta.discourse.org/t/hostname-smtp-tavoweb-lt-does-not-match-the-server-certificate/95271/9 "2018-08-21T14:03:29Z")
Eny help ? what im doing wrong ?
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### Author:  [@itsbhanusharma](https://meta.discourse.org/u/itsbhanusharma)
#### Post date: [August 21, 2018, 2:14pm UTC](https://meta.discourse.org/t/hostname-smtp-tavoweb-lt-does-not-match-the-server-certificate/95271/10 "2018-08-21T14:14:14Z")
Is server.tavopc.it Your server? If so, Install a valid SSL certificate for the domain smtp.tavopc.it and then it should work fine.
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### Author:  [@savas](https://meta.discourse.org/u/savas)
#### Post date: [August 21, 2018, 2:24pm UTC](https://meta.discourse.org/t/hostname-smtp-tavoweb-lt-does-not-match-the-server-certificate/95271/11 "2018-08-21T14:24:35Z")
Job exception: hostname “smtp.tavopc.lt” does not match the server certificate nop stil not working…
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### Author:  [@pfaffman](https://meta.discourse.org/u/pfaffman)
#### Post date: [August 21, 2018, 2:29pm UTC](https://meta.discourse.org/t/hostname-smtp-tavoweb-lt-does-not-match-the-server-certificate/95271/12 "2018-08-21T14:29:29Z")
You need to use a mail server that is configured correctly. If you installed that server then you either need to go to a forum about that mail server or use a service like mailgun. It’s likely that mail from that server will not be delivered anyway.
This is not a Discourse problem.
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### Author:  [@savas](https://meta.discourse.org/u/savas)
#### Post date: [August 21, 2018, 2:30pm UTC](https://meta.discourse.org/t/hostname-smtp-tavoweb-lt-does-not-match-the-server-certificate/95271/13 "2018-08-21T14:30:51Z")
> [@pfaffman](#):
>
> You need to use a mail server that is configured correctly. If you installed that server then you either need to go to a forum about that mail server or use a service like mailgun. It’s likely that mail from that server will not be delivered anyway.
>
> This is not a Discourse problem.
Mail server working fine …
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### Author:  [@savas](https://meta.discourse.org/u/savas)
#### Post date: [August 21, 2018, 2:33pm UTC](https://meta.discourse.org/t/hostname-smtp-tavoweb-lt-does-not-match-the-server-certificate/95271/14 "2018-08-21T14:33:07Z")
Server using Postfix smtp server is discourse not compatible with that? if so then what smtp servers is compatible ?
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### Author:  [@mpalmer](https://meta.discourse.org/u/mpalmer)
#### Post date: [August 21, 2018, 10:16pm UTC](https://meta.discourse.org/t/hostname-smtp-tavoweb-lt-does-not-match-the-server-certificate/95271/15 "2018-08-21T22:16:40Z")
Any properly configured SMTP server is fine. We use Postfix for all incoming and outgoing mail for all CDCK-hosted Discourse sites and it works great. As Jay said, though, your problem isn’t a Discourse one, and you’ll probably have more luck getting support for your mail server configuration at a Postfix-specific discussion site.
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### Author:  [@savas](https://meta.discourse.org/u/savas)
#### Post date: [August 21, 2018, 10:18pm UTC](https://meta.discourse.org/t/hostname-smtp-tavoweb-lt-does-not-match-the-server-certificate/95271/16 "2018-08-21T22:18:17Z")
😃 all Postfix working corectly server sending and recaiving emails … server in my home near my 😃
Problem fixed
It was discourse problem …
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### Author:  [@mpalmer](https://meta.discourse.org/u/mpalmer)
#### Post date: [August 21, 2018, 10:53pm UTC](https://meta.discourse.org/t/hostname-smtp-tavoweb-lt-does-not-match-the-server-certificate/95271/17 "2018-08-21T22:53:29Z")