So last week I started getting a couple complaints from customers about not being able to send to some people. THe bounce messages they were getting had no info in them about what was going on, only SMTP error. Nothing that we normally see when blocked or unknown user etc. So I ran through the standard RBL checks and nothing.. all clean.
So Monday I had another customer send me a bounce message that actually showed a good bounce message:
> SMTP error from remote mail server after RCPT TO:<[email protected]>:
> host mx.usa.net [165.212.65.113]: 550 Mail from xx.xx.xx.xx
>refused. Please refer to IP Reputation Investigation for an
>explanation.
So i proceeded to follow their instructions as it turns out the issue from the week before was also because of Symantec. 3 days later I am still blocked with Symantec with no idea of why. I have now put in the removal request twice. Turns out that now I have users that cannot send to outlook.com, hotmail or MSN. So I went through their process and joined their SNDS and see that the IP Status for hotmail is showing we are block by Symantec so all my problems are revolving around the Symantec Block.
I have gone through my logs and have found no mass mailing done by our customers. I do not allow mailing lists on the server. Of course they never give you a specific reason why you were block so at this point it could be anything.
I am currently at a loss as to what to look for. Any help would be appreciated.
So Monday I had another customer send me a bounce message that actually showed a good bounce message:
> SMTP error from remote mail server after RCPT TO:<[email protected]>:
> host mx.usa.net [165.212.65.113]: 550 Mail from xx.xx.xx.xx
>refused. Please refer to IP Reputation Investigation for an
>explanation.
So i proceeded to follow their instructions as it turns out the issue from the week before was also because of Symantec. 3 days later I am still blocked with Symantec with no idea of why. I have now put in the removal request twice. Turns out that now I have users that cannot send to outlook.com, hotmail or MSN. So I went through their process and joined their SNDS and see that the IP Status for hotmail is showing we are block by Symantec so all my problems are revolving around the Symantec Block.
I have gone through my logs and have found no mass mailing done by our customers. I do not allow mailing lists on the server. Of course they never give you a specific reason why you were block so at this point it could be anything.
I am currently at a loss as to what to look for. Any help would be appreciated.