STARTTLS is required aldar
STARTTLS is required Synametrics Support
STARTTLS is required Anonymous
| From: | aldar |
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| Date: | 10/19/17 8:10 AM |
| Topic: | STARTTLS is required |
| Type: | General Discussions |
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We are using free version 4.7, build 5776 as smtp proxy. Office365 users can't send to us mail. The error is returned '450 4.4.317 Cannot connect to remote server [Message=451 5.7.3 STARTTLS is required to send mail When I ehlo xeams, there is no "250 STARTTLS". Starttls in smtp proxy is available from version 4.7. Does it mean that free version won't receive mails from office365 users? Or I just missed some configuration? |
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| From: | Synametrics Support |
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| Date: | 10/19/17 9:35 AM |
| Topic: | STARTTLS is required |
| Type: | General Discussions |
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Support for STARTTLS in SMTP Proxy was added after build 5776. Please refer to http://www.xeams.com/changelog.htm for actual build number and dates. Besides STARTTLS, several other features have been added since build 5776, which are increasing becoming standard and eventually receiving servers will penalize the sender if they are not used. For example, gmail will warn/notify if STARTTLS, SPF, DKIM, and DMARC are not used. |
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| From: | Anonymous |
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| Date: | 10/19/17 9:20 PM |
| Topic: | STARTTLS is required |
| Type: | General Discussions |
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Does it mean that free version won't receive mails from office365 users, and in the future from other smtp servers?
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