sounds to me like anti spam tools at work on your work address. What new spam tools has your work employed in the last 30 days?

wsb01 said

I've lost the ability to send emails to my work email address, it seems to have stopped working in the last 30 days or so. I can receive emails from the work address to my personal address, but sending from the personal address to work doesn't work. The emails are not returned as undeliverable. I have Verizon FIOS as my provider, I have tried sending email to my work address from their web email interface and it works fine, so the problem lies in Thunderbird. Anyone have an idea what has happened? I'm not having an issue sending or receiving to any other address.

Matt said

sounds to me like anti spam tools at work on your work address. What new spam tools has your work employed in the last 30 days?

According to them, none. I checked with Verizon support, they say it has to be Thunderbird as I can send to my work address just fine via their web interface. Not sure what has happened to make it stop working, I've checked Thunderbird settings but haven't stumbled on anything that might be causing this.

It is just a shame Verizon employ support that is not.

Sending from Thunderbird uses a completely different set of protocols and procedures to web mail.

Sending from Thunderbird is analogous to sending snail mail by dropping it in a pillar box in your street corner. Sending using web mail is more like going to the local mail sorting house and dropping the mail into the truck delivering to the city your sent your mail to.

In my analogy there is one huge difference, your anti virus program does not scan outgoing web mails, it does not even see them as mails. The same goes for incoming mail.

So when support people start blaming outlook or Thunderbird and saying it must be the problem, what they are really saying is they actually know nothing more about mail than you do, they have arrived at the end of their script and your have no resolution, so please go away.

We try to do a little better here, but sometimes we can't. Verizon have access to the outgoing servers, they could tell you if your mail ever actually leaves their system, we can only guess.

So what is the mail server your sending to? Is the outgoing mail address your work one?

When you right click on the account name in the folder tree and select settings. On the bottom right is the outgoing SMTP server for the account. Is it what your think it is?

Matt said

It is just a shame Verizon employ support that is not. Sending from Thunderbird uses a completely different set of protocols and procedures to web mail. Sending from Thunderbird is analogous to sending snail mail by dropping it in a pillar box in your street corner. Sending using web mail is more like going to the local mail sorting house and dropping the mail into the truck delivering to the city your sent your mail to. In my analogy there is one huge difference, your anti virus program does not scan outgoing web mails, it does not even see them as mails. The same goes for incoming mail. So when support people start blaming outlook or Thunderbird and saying it must be the problem, what they are really saying is they actually know nothing more about mail than you do, they have arrived at the end of their script and your have no resolution, so please go away. We try to do a little better here, but sometimes we can't. Verizon have access to the outgoing servers, they could tell you if your mail ever actually leaves their system, we can only guess. So what is the mail server your sending to? Is the outgoing mail address your work one? When you right click on the account name in the folder tree and select settings. On the bottom right is the outgoing SMTP server for the account. Is it what your think it is?

The outgoing mail address is to my work email, it's @us.ibm.com, I checked the SMTP server name, it is outgoing.verizon.net which is correct.

You're right about Verizon support, once I was able to send via their web interface, they were pretty much done with me....and I pay for that support too...

This is probably going to end up being something simple, at least i hope so, but at the moment it's very frustrating...

lets me be sure I have this right.

Your sending mail as [email protected] to [email protected] and the outgoing server is outgoing.verizon.net?

Right click your account in the folder pane and select settings. If you have a reply to address remove it. Check the email address show is correct. remove and organisation.

Do you use a signature?

Matt said

lets me be sure I have this right. Your sending mail as [email protected] to [email protected] and the outgoing server is outgoing.verizon.net? Right click your account in the folder pane and select settings. If you have a reply to address remove it. Check the email address show is correct. remove and organisation. Do you use a signature?

Yep, sending as [email protected] to [email protected], and the outgoing server name is correct. No reply to address or organization and my email address is correct in settings.

ok, what I am going to suggest is tedious, but a good way to learn exactly what the mail server is saying. I hope your good at copying and translating.

The link is how to send mail using the telnet program... it is built into windows and is a command line prompt program. Everything is interactive and if your like me, expect to mess it up a couple of times. What it will display is everything the server has to say, much more informative that any sort of logging. If it lets you send and again it disappears into the either I am not sure where to go next, except back to Verizon with the complaint telnet messages disappear why?

http://www.wikihow.com/Send-Email-Using-Telnet